{"title":"Trace Elements \u0026 Additives","description":"\u003cp\u003eHigh-quality trace elements, complexes, and additives for a stable and healthy marine aquarium. Calcium, magnesium, carbonate hardness, and nitrate \u0026 phosphate reducers for optimal water parameters.\u003c\/p\u003e","products":[{"product_id":"doktorfisch-calcium-complex-1000ml","title":"Doctorfish Calcium complex 1000ml","description":"\u003ch6\u003e\u003cb\u003eCalcium complex\u003c\/b\u003e\u003c\/h6\u003e\u003cp\u003eSuitable for dosing pumps.\u003c\/p\u003e\u003cul\u003eCalcium complex provides calcium and trace elements in a biologically optimally usable form and thus supports healthy coral growth. In addition to stony corals, soft and leather corals, mussels, tube worms, algae, etc. also require a sufficient calcium concentration for their growth. Along with alkalinity, calcium is one of the most important parameters in a marine aquarium and is around 420 mg\/l in natural seawater.\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eDosage:\u003c\/b\u003e 10 ml increases the calcium content by 10 mg per 100 l. The calcium content should be between 410 mg\/l and 440 mg\/l.\u003c\/p\u003e","brand":"Doktorfisch Produkte","offers":[{"title":"Default Title","offer_id":53489084105047,"sku":"dr_9001","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Calcium-complex.jpg?v=1780999507"},{"product_id":"doktorfisch-carbonates-complex-kh-1000ml","title":"Surgeonfish Carbonates complex KH 1000ml","description":"\u003ch6\u003e\u003cb\u003eCarbonates complex\u003c\/b\u003e\u003c\/h6\u003e\u003cp\u003eCarbonates complex is a specially formulated blend of various carbonates and trace elements. It restores alkalinity and improves the buffering capacity (pH) of aquarium water while replenishing important trace elements.\u003cbr\u003e Its complex formula is designed to mix clearly without cloudiness or precipitation. KH (alkalinity), along with calcium, is one of the most important parameters in saltwater aquariums and is approximately 7° in natural seawater.\u003c\/p\u003e\u003cp\u003eCombine it with Calcium complex to correct calcium and alkalinity levels, creating a two-part system of the highest quality.\u003c\/p\u003e\u003cp\u003eSuitable for dosing pumps.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDosage:\u003c\/b\u003e x ml increases carbonate hardness (alkalinity) by 1° dKH\/ per 100 l. KH in saltwater aquariums should be between 6.5-8°.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eKeep product away from children!\u003c\/b\u003e\u003c\/p\u003e","brand":"Doktorfisch Produkte","offers":[{"title":"Default Title","offer_id":53489084334423,"sku":"90120","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Carbonates-cmplex.jpg?v=1780999508"},{"product_id":"doktorfisch-magnesium-complex-1000ml","title":"Doktorfisch Magnesium complex 1000ml","description":"\u003ch6\u003e\u003cb\u003eMagnesium complex\u003c\/b\u003e\u003c\/h6\u003e\u003cul\u003eMagnesium is a macro element and part of the calcium supply system in seawater. Although magnesium is not used as frequently as calcium and carbonates, a stable alkalinity is not possible without magnesium. Some organisms, including coralline algae, mussels and sea urchins, store larger amounts of magnesium in their skeletons.\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eDosage:\u003c\/b\u003e 20 ml per 100 liters increases the magnesium content by 10 mg\/liter.\u003c\/p\u003e\u003cp\u003eThe ideal magnesium content is about 1300-1350 mg\/liter.\u003c\/p\u003e","brand":"Doktorfisch Produkte","offers":[{"title":"Default Title","offer_id":53489084629335,"sku":"90121","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Magnesium-complex.jpg?v=1780999509"},{"product_id":"doktorfisch-nopox-nitrat-phosphat-senker","title":"Doctorfish NoPoX Nitrate \u0026 Phosphate Reducer","description":"\u003ch6\u003e\u003cstrong\u003eNoPoX complex\u003c\/strong\u003e\u003c\/h6\u003e\u003cul\u003e\u003cli style=\"list-style-type: none;\"\u003e\u003cul\u003eThe reduction of nitrate and phosphate in any saltwater aquarium is improved by NoPoX complex, allowing for a fast and effective reduction even with elevated nitrate and phosphate levels.\u003c\/ul\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cul\u003e\u003cli style=\"list-style-type: none;\"\u003e\u003cul\u003eThe solution of selected hydrocarbons increases the performance of bacteria in the aquarium, leading to increased nitrate reduction and the associated phosphate reduction.\u003c\/ul\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cul\u003eWe recommend using our Aquno live bacteria to achieve cleaner aquarium water more quickly and sustainably.\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eDosage:\u003c\/strong\u003e 2 ml per 100 l daily, increase in small steps as needed. The optimal nitrate level in a saltwater aquarium is 2–4 mg\/l and the phosphate level is 0.03–0.09 mg\/l.\u003c\/p\u003e","brand":"Doktorfisch Produkte","offers":[{"title":"Default Title","offer_id":53489085350231,"sku":"90181","price":32.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/NOpox.jpg?v=1780999511"},{"product_id":"doktorfisch-additive-bor-1000ml","title":"Doctorfish Additives Boron 1000ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e15 ml per 100 liters of seawater increases the boron content by 1 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e2 mg boron per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eAdditive B:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Boron, the boron content in seawater typically ranges between 4 and 5 mg\/l. Boron plays a crucial role in stabilizing pH and is essential for coral calcification. Too low a boron concentration can impair coral growth. Levels below 2 mg\/l can even lead to coral tissue detachment, while levels below 4 mg\/l can result in a loss of intense colors and the characteristic metallic sheen in SPS corals.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003e15 ml per 100 liters of seawater increases the boron content by 1 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch1\u003e🌊 \u003cstrong\u003eDoktorfisch: Your Brand for High-Quality Seawater and Reef Aquarium Products\u003c\/strong\u003e\n\u003c\/h1\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in marine aquaristics. We develop excellent additives and care products specifically designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in marine aquariums. When you choose Doktorfisch, you can rely on a brand that combines scientific expertise, many years of practical experience, and the highest purity. This ensures a healthy, colorful, and stable reef.\u003c\/p\u003e\u003ch2\u003e🧪 \u003cstrong\u003eOur Mission in Marine Aquaristics\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWe want to help you make your aquariums a true feel-good place for fish, corals, and microorganisms. Whether you are looking for a reef aquarium with corals, water additives, or specialized mineral salts for surgeonfish – you will find everything your heart desires with us. We develop all our products according to strict quality standards and base them on current scientific findings in marine biology and chemistry. We naturally ensure that your water values remain stable and your reef grows healthy in the long term.\u003c\/p\u003e\u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The Brand for Effective Reef Care \u0026 Stable Water Chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWith Doktorfisch, you choose products that help you build a marine aquarium that runs stably and shines in full beauty. Our solutions do just that. They strengthen the biology of the reef, reduce unwanted fluctuations, and create an environment in which corals can fully develop their potential. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides the right support. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides you with the right support.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489677336919,"sku":"90155","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/B-1L.jpg?v=1780999529"},{"product_id":"doktorfisch-additive-bor-250ml","title":"Doctorfish Additives Boron 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e15 ml per 100 liters of seawater increases the boron content by 1 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e2 mg boron per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eAdditive B:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoctorfish Additive Boron: The boron content in seawater typically ranges between 4 and 5 mg\/l. Boron plays a crucial role in stabilizing the pH value and is essential for coral calcification. A boron concentration that is too low can impair coral growth. Values below 2 mg\/l can even lead to coral tissue detachment, while values below 4 mg\/l can result in a loss of intense colors and the characteristic metallic sheen in SPS corals.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003e15 ml per 100 liters of seawater increases the boron content by 1 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489692442967,"sku":"90149","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/B-250ml.jpg?v=1780999530"},{"product_id":"doktorfisch-additive-bor-500ml","title":"Doctor Fish Additive Boron 500ml","description":"\u003cp\u003eDoktorfisch Additives Boron 500ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489697718615,"sku":"N\/A","price":13.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/B-500ml.jpg?v=1780999534"},{"product_id":"doktorfisch-additive-brom-1000ml","title":"Doctorfish Additives Bromine 1000ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml to 100 liters of seawater increases the bromine content by 1 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e10 mg bromine per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore cool, dry and protected from light.\u003c\/p\u003e\u003ch1\u003eDoktorfisch Additive Bromine\u003c\/h1\u003e\u003ch1\u003e\u003cb\u003eAdditive Br:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Bromine This high-purity bromine stock solution is used for targeted adjustment of the bromine content in saltwater aquariums. It supports the ion balance and biological stability in reef systems.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003e1 ml to 100 liters of seawater increases the bromine content by 1 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003chr\u003e\u003ch1\u003e🌊 \u003cstrong\u003eDoktorfisch: Your brand for high-quality saltwater and reef aquarium products\u003c\/strong\u003e\n\u003c\/h1\u003e\u003cp\u003eDoktorfisch stands for quality, precision and passion in saltwater aquaristics. We develop great additives and care products that are specifically designed to stabilize water parameters, promote coral growth and support the natural balance in saltwater aquariums in the long term. If you choose Doktorfisch, you can rely on a brand that combines scientific expertise, many years of practical experience and the highest purity. This ensures a healthy, colorful and stable reef.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003e🧪 \u003cstrong\u003eOur mission in saltwater aquaristics\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWe want to help you make your aquariums a real feel-good place for fish, corals and microorganisms. Whether you are looking for a reef aquarium with corals, water additives or specialized mineral salts for surgeonfish – you will find everything your heart desires with us. We develop all our products according to strict quality standards and are guided by current scientific findings from the fields of marine biology and chemistry. Of course, we make sure that your water values remain stable and that your reef grows healthy in the long term.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The brand for effective reef care \u0026amp; stable water chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWith Doktorfisch, you choose products that help you build a saltwater aquarium. That runs stably and shines in full beauty. Our solutions do just that. They strengthen the biology of the reef, reduce unwanted fluctuations and create an environment in which corals can fully develop their potential. Whether you operate a nano reef, an SPS-dominant aquarium or a large-volume saltwater system – Doktorfisch provides the right support. Whether you operate a nano reef, an SPS-dominant aquarium or a large-volume saltwater system – Doktorfisch provides you with the right support.\u003c\/p\u003e","brand":"Doktorfisch Produkte","offers":[{"title":"1000 mL","offer_id":53489709515095,"sku":"90163","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/BR-1L.jpg?v=1780999538"},{"product_id":"doktorfisch-additive-brom-250ml","title":"Doctorfish Additives Bromine 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml per 100 liters of saltwater increases the bromine concentration by 1 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e10 mg bromine per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place protected from light.\u003c\/p\u003e\u003cp\u003eDoktorfisch Additives Brom: This high-purity bromine stock solution is used for targeted adjustment of bromine levels in saltwater aquariums. It supports ion balance and biological stability in reef systems.\u003c\/p\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in marine aquaristics. We develop excellent additives and care products specifically designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in saltwater aquariums.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489710596439,"sku":"90161","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/BR-250ml.jpg?v=1780999542"},{"product_id":"doktorfisch-additive-brom-500ml","title":"Tang Additives Bromine 500ml","description":"\u003cp\u003eDoctorfish Additives Bromine 500ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489711710551,"sku":"N\/A","price":13.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/BR-500ml.jpg?v=1780999545"},{"product_id":"doktorfisch-additive-chrom-250ml","title":"Doctor Fish Additive Chrome 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml to 100 liters of seawater increases the chromium content by +0.5 µg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e0.5 µg chromium per liter.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eAdditive Cr:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eDoktorfisch Additive Chromium High-purity chromium(III) stock solution for marine aquariums. For targeted supply with the trace element chromium. Supports a balanced micronutrient ratio.\u003c\/p\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in marine aquaristics. We develop excellent additives and care products specifically designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in marine aquariums.\u003c\/p\u003e","brand":"Doktorfisch Produkte","offers":[{"title":"250 ml","offer_id":53489714659671,"sku":"90172","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Cr-250ml.jpg?v=1780999574"},{"product_id":"doktorfisch-additive-chrom-50ml","title":"Tang Additives Chrome 50ml","description":"\u003cp\u003eDoctorfish Additives Chrome 50ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489716199767,"sku":"99983","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Cr-50ml.jpg?v=1780999581"},{"product_id":"doktorfisch-additive-eisen-250ml","title":"Doctorfish Additives Iron 250ml","description":"\u003cp\u003eDoktorfisch Additive Iron supplies corals, coralline algae, and other invertebrates with bioavailable iron. Promotes coloration, polyp extension, and growth. Supports the activity of symbiotic algae (zooxanthellae) and contributes to nutrient balance.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml per 100 liters of seawater increases the iron content by +4 µg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003e🌊 \u003cstrong\u003eDoktorfisch: Your Brand for High-Quality Marine and Reef Aquarium Products\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in marine aquaristics. We develop excellent additives and care products specifically designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in marine aquariums. When you choose Doktorfisch, you can rely on a brand that combines scientific expertise, many years of practical experience, and the highest purity. This ensures a healthy, colorful, and stable reef.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003e🧪 \u003cstrong\u003eOur Mission in Marine Aquaristics\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWe want to help you make your aquariums a true haven for fish, corals, and microorganisms. Whether you're looking for a reef aquarium with corals, water additives, or specialized mineral salts for Doktorfisch – you'll find everything your heart desires with us. We develop all our products according to strict quality standards, guided by current scientific findings in marine biology and chemistry. Naturally, we ensure that your water parameters remain stable and your reef grows healthy in the long term.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The Brand for Effective Reef Care \u0026amp; Stable Water Chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWith Doktorfisch, you choose products that help you set up a marine aquarium that runs stably and shines in its full beauty. Our solutions do exactly that. They strengthen the biology of the reef, reduce undesirable fluctuations, and create an environment where corals can reach their full potential. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides the right support.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"250 ml","offer_id":53489726751063,"sku":"90010","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Fe-250ml.jpg?v=1780999584"},{"product_id":"doktorfisch-additive-eisen-50ml","title":"Doctorfish Additives Iron 50ml","description":"\u003cp\u003eDoktorfisch Additives Iron 50ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489757389143,"sku":null,"price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Fe-50ml.jpg?v=1780999590"},{"product_id":"doktorfisch-additive-fluorid-1000ml","title":"Doktorfisch Additives Fluoride 1000ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e10 ml per 100 liters of seawater increases the fluoride content by 0.2 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e0.5 mg fluoride per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eAdditive F:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eDoktorfisch Additive Fluoride: this highly concentrated solution specifically compensates for fluoride deficiency and supports the formation of stable coral skeletons. Fluoride strengthens resistance to erosion and environmental stress and can promote the development of intense blue and violet tones. In combination with trace elements such as iodine and strontium, it significantly contributes to the color intensity and vitality of corals.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eDoktorfisch: Your brand for high-quality marine and reef aquarium products\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in marine aquaristics. We develop excellent additives and care products specifically designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in marine aquariums. When you choose Doktorfisch, you can rely on a brand that combines scientific expertise, many years of practical experience, and the highest purity. 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Stable potassium levels promote the health and color intensity of the animals. Even a 5% drop can significantly impair the growth and coloration of corals.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003e10 ml per 100 liters of saltwater increases the potassium level by 10 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003chr\u003e\u003ch1\u003e🌊 \u003cstrong\u003eDoktorfisch: Your Brand for High-Quality Saltwater and Reef Aquarium Products\u003c\/strong\u003e\n\u003c\/h1\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in saltwater aquaristics. We develop great additives and care products specifically designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in saltwater aquariums. When you choose Doktorfisch, you can rely on a brand that combines scientific expertise, many years of practical experience, and the highest purity. 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We naturally ensure that your water parameters remain stable and your reef grows healthy in the long term.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The brand for effective reef care \u0026amp; stable water chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWith Doktorfisch, you choose products that help you build a marine aquarium that runs stably and shines in full beauty. Our solutions do just that. They strengthen the biology of the reef, reduce unwanted fluctuations, and create an environment where corals can unfold their full potential. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides the right support.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489767088471,"sku":"90145","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/K-250ml.jpg?v=1778148682"},{"product_id":"doktorfisch-additive-kalium-500ml","title":"Doctorfish Additives Potassium 500ml","description":"\u003ch1\u003eDoktorfisch Additive Potassium\u003c\/h1\u003e\u003ch1\u003e\u003cb\u003eAdditive K:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Potassium is a highly concentrated potassium solution designed for marine aquariums to specifically compensate for potassium deficiencies. A stable potassium level promotes the health and color intensity of the animals. 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Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides the right support.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489767711063,"sku":"90146","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/K-500ml.jpg?v=1778148696"},{"product_id":"doktorfisch-additive-kobalt-250ml","title":"Doctor Fish Additives Cobalt 250ml","description":"\u003ch1\u003eDoktorfisch Additive Cobalt\u003c\/h1\u003e\u003cp\u003e\u003cb\u003eAdditive Co:\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eDoktorfisch Additive Cobalt is an essential trace element that supports important enzymatic processes in bacteria and microorganisms in small quantities. It contributes to metabolism and cell division. Despite the very low requirement, cobalt is important for a stable micronutrient profile, especially in nutrient-poor reef systems. 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This ensures a healthy, colorful, and stable reef.\u003c\/p\u003e \u003chr\u003e \u003ch2\u003e🧪 \u003cstrong\u003eOur Mission in Saltwater Aquaristics\u003c\/strong\u003e\n\u003c\/h2\u003e \u003cp\u003eWe want to help you make your aquariums a true haven for fish, corals, and microorganisms. Whether you are looking for a reef aquarium with corals, water additives, or specialized mineral salts for surgeonfish – with us, you will find everything your heart desires. We develop all our products according to strict quality standards and base them on current scientific findings from marine biology and chemistry. Naturally, we ensure that your water values remain stable and your reef grows healthy in the long term.\u003c\/p\u003e \u003chr\u003e \u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The Brand for Effective Reef Care \u0026amp; Stable Water Chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e \u003cp\u003eWith Doktorfisch, you choose products that help you build a saltwater aquarium that runs stably and shines in full beauty. Our solutions do just that. They strengthen the biology of the reef, reduce unwanted fluctuations, and create an environment in which corals can fully develop their potential. 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It can have a positive effect on the growth, vitality, and color development of corals.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489778753879,"sku":"90198","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Li-250ml.jpg?v=1778148879"},{"product_id":"doktorfisch-additive-lithium-50ml","title":"Doctorfish Additive Lithium 50ml","description":"\u003cp\u003eDoktorfisch Additives Lithium 50ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489779999063,"sku":null,"price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Li-50ml.jpg?v=1778148901"},{"product_id":"doktorfisch-additive-magnesium-1000ml","title":"Doctorfish Additives Magnesium 1000ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e10 ml per 100 liters of salt water increases the magnesium level by 10 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e100 mg magnesium per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eAdditive Mg:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Magnesium is a central element for stabilizing the ion balance in saltwater aquariums. It influences the bioavailability of calcium and carbonate hardness, thus ensuring stable water chemistry. Although magnesium is hardly consumed directly by stony corals, a sufficient level is important. It plays a particular role in the growth of coralline algae and calcification. 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It influences the bioavailability of calcium and carbonate hardness, thus ensuring stable water chemistry. Although magnesium is hardly consumed directly by stony corals, an adequate content is important. It plays a particular role in the growth of coralline algae and calcification. A stable magnesium value promotes the balance of calcium and KH and creates optimal conditions for SPS and LPS corals.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003e10 ml per 100 liters of salt water increases the magnesium content by 10 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch1\u003e🌊 \u003cstrong\u003eDoktorfisch: Your brand for high-quality saltwater and reef aquarium products\u003c\/strong\u003e\n\u003c\/h1\u003e\u003cp\u003eDoktorfisch stands for quality, precision and passion in marine aquaristics. We develop great additives and care products that are specially designed to stabilize water parameters, promote coral growth and permanently support the natural balance in marine aquariums. When you choose Doktorfisch, you can rely on a brand that combines scientific expertise, many years of practical experience and the highest purity. This is how you ensure a healthy, colorful and stable reef.\u003c\/p\u003e\u003ch2\u003e🧪 \u003cstrong\u003eOur mission in marine aquaristics\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWe want to help you make your aquariums a real place of well-being for fish, corals and microorganisms. Whether you are looking for a reef aquarium with corals, water additives or specialized mineral salts for surgeonfish – with us you will find everything your heart desires. We develop all our products according to strict quality standards and base them on current scientific findings from marine biology and chemistry. We naturally ensure that your water values remain stable and that your reef grows healthily in the long term.\u003c\/p\u003e\u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The brand for effective reef care \u0026 stable water chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWith Doktorfisch, you choose products that help you build a marine aquarium that runs stably and shines in full beauty. Our solutions do just that: they strengthen the biology of the reef, reduce unwanted fluctuations and create an environment in which corals can unfold their full potential. Whether you operate a nano reef, an SPS-dominant aquarium or a large-volume marine system – Doktorfisch provides the right support.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489783079255,"sku":"90138","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/MG-250ml.jpg?v=1778148952"},{"product_id":"doktorfisch-additive-magnesium-500ml","title":"Doktorfisch Additive Magnesium 500ml","description":"\u003cp\u003eDoktorfisch Additives Magnesium 500ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489784521047,"sku":"N\/A","price":13.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/MG-500.jpg?v=1778148977"},{"product_id":"doktorfisch-additive-mangan-250ml","title":"Doctorfish Additives Manganese 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml per 100 liters of saltwater increases the manganese content by 4 µg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 µg manganese per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003cp\u003eDoktorfisch Additive Manganese is an essential trace element indispensable for numerous biological processes in the aquarium. Among other things, it supports the photosynthesis of zooxanthellae and enzyme management in corals. Targeted supplementation contributes to the vitality and color development of corals.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eDoktorfisch: Your brand for high-quality saltwater and reef aquarium products\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in saltwater aquaristics. We develop great additives and care products specially designed to stabilize water parameters, promote coral growth, and support the natural balance in saltwater aquariums in the long term.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489788191063,"sku":"90186","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Mn-250ml.jpg?v=1778149051"},{"product_id":"doktorfisch-additive-mangan-50ml","title":"Tang Additives Manganese 50ml","description":"\u003cp\u003eDoktorfisch Additives Manganese 50ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489794122071,"sku":"N\/A","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Mn-50ml.jpg?v=1778149070"},{"product_id":"doktorfisch-additive-molybdan-250ml","title":"Doctorfish Additives Molybdenum 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml to 100 liters of salt water increases the molybdenum content by 6 µg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e6 µg molybdenum per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eAdditive Mo:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eDoktorfisch Additive Molybdenum High-purity molybdenum stock solution for saltwater aquariums. It promotes microbiological processes and nitrogen degradation by nitrifying and denitrifying bacteria. It is particularly important for nutrient-poor reef systems.\u003c\/p\u003e\u003cp\u003eDoktorfisch stands for quality, precision and passion in saltwater aquaristics. We develop great additives and care products that are specifically designed to stabilize water parameters, promote coral growth and support the natural balance in saltwater aquariums in the long term.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489795072343,"sku":"901670","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Mo-250ml.jpg?v=1778149085"},{"product_id":"doktorfisch-additive-molybdan-50ml","title":"Doctorfish Additives Molybdenum 50ml","description":"\u003cp\u003eDoctorfish Additives Molybdenum 50ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489816535383,"sku":"N\/A","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Mo-50ml.jpg?v=1778149106"},{"product_id":"doktorfisch-additive-nickel-250ml","title":"Doctor Fish Additive Nickel 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml per 100 liters of seawater increases the nickel concentration by +4 µg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e4 µg nickel per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place, protected from light.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eAdditive Ni:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Nickel High-purity nickel stock solution. For targeted nickel supply in marine aquariums. This solution is used for precise supplementation of nickel when a deficiency is detected. Nickel is an essential trace element that supports microbial processes and enzymatic functions in the aquarium.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003e1 ml per 100 liters of seawater increases the nickel concentration by +4 µg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch1\u003e🌊 \u003cstrong\u003eDoktorfisch: Your brand for high-quality marine and reef aquarium products\u003c\/strong\u003e\n\u003c\/h1\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in marine aquaristics. We develop excellent additives and care products specifically designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in marine aquariums. When you choose Doktorfisch, you can rely on a brand that combines scientific expertise, many years of practical experience, and the highest purity. This ensures a healthy, colorful, and stable reef.\u003c\/p\u003e\u003ch2\u003e🧪 \u003cstrong\u003eOur mission in marine aquaristics\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWe want to help you make your aquariums a true feel-good place for fish, corals, and microorganisms. Whether you are looking for a reef aquarium with corals, water additives, or specialized mineral salts for surgeonfish – you will find everything your heart desires with us. We develop all our products according to strict quality standards and base them on current scientific findings from marine biology and chemistry. Of course, we ensure that your water values remain stable and your reef grows healthy in the long term.\u003c\/p\u003e\u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The brand for effective reef care \u0026 stable water chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWith Doktorfisch, you choose products that help you build a marine aquarium that runs stably and shines in full beauty. Our solutions do exactly that. They strengthen the biology of the reef, reduce unwanted fluctuations, and create an environment in which corals can unleash their full potential. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides the right support. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides you with the right support.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489818763607,"sku":"90174","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Ni-250ml.jpg?v=1778149143"},{"product_id":"doktorfisch-additive-phosphat-500ml","title":"Doctorfish Additive Phosphate 500ml","description":"\u003cp\u003eDoktorfisch Additive Phosphate 500ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489868112215,"sku":"N\/A","price":13.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/P-500ml.jpg?v=1778149870"},{"product_id":"doktorfisch-additive-phosphat-250ml","title":"Doctorfish Additive Phosphate 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml to 100 liters of seawater increases the phosphate level by 0.01 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e0.02 mg phosphate per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eAdditive P:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Phosphate was developed to specifically increase the phosphate level in marine aquariums. A balanced phosphate level is crucial for the growth of corals and microorganisms. Levels that are too low can disturb the ecological balance and inhibit the development of corals. The addition supports the vitality of the reef system and promotes healthy colors and stable living conditions.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003e1 ml to 100 liters of seawater increases the phosphate level by 0.01 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch1\u003e🌊 \u003cstrong\u003eDoktorfisch: Your Brand for High-Quality Marine and Reef Aquarium Products\u003c\/strong\u003e\n\u003c\/h1\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in marine aquaristics. We develop great additives and care products specifically designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in marine aquariums. When you choose Doktorfisch, you can rely on a brand that combines scientific expertise, many years of practical experience, and the highest purity. This ensures a healthy, colorful, and stable reef.\u003c\/p\u003e\u003ch2\u003e🧪 \u003cstrong\u003eOur Mission in Marine Aquaristics\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWe want to help you make your aquariums a true feel-good place for fish, corals, and microorganisms. Whether you're looking for a reef aquarium with corals, water additives, or specialized mineral salts for surgeonfish – you'll find everything your heart desires with us. We develop all our products according to strict quality standards and base them on current scientific findings in marine biology and chemistry. We naturally ensure that your water values remain stable and that your reef grows healthily in the long term.\u003c\/p\u003e\u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The Brand for Effective Reef Care \u0026amp; Stable Water Chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWith Doktorfisch, you choose products that help you build a marine aquarium that runs stably and shines in full beauty. Our solutions do just that. They strengthen the biology of the reef, reduce unwanted fluctuations, and create an environment where corals can fully develop their potential. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides the right support. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides you with the right support.\u003c\/p\u003e","brand":"Doktorfisch Produkte","offers":[{"title":"Default Title","offer_id":53489871094103,"sku":"90132","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/P-250ml.jpg?v=1778149896"},{"product_id":"doktorfisch-additive-phosphat-1000ml","title":"Doktorfisch Additive Phosphate 1000ml","description":"\u003ch1\u003eDoktorfisch Additive Phosphat\u003c\/h1\u003e\u003cp\u003e\u003cb\u003eAdditive P:\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eDoktorfisch Additive Phosphate was developed to specifically increase the phosphate level in marine aquariums. A balanced phosphate level is crucial for the growth of corals and microorganisms. Levels that are too low can disrupt the ecological balance and inhibit the development of corals. Adding it supports the vitality of the reef system and promotes healthy colors and stable living conditions.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml per 100 liters of seawater increases the phosphate level by 0.01 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e0.02 mg phosphate per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place protected from light.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489871618391,"sku":"90134","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/P-1L.jpg?v=1778149906"},{"product_id":"doktorfisch-additive-strontium-1000ml","title":"Tang Additive Strontium 1000ml","description":"\u003cp\u003eDoktorfisch Additive Strontium is a highly concentrated strontium solution specially developed for reef aquariums to specifically compensate for strontium deficiencies. Strontium is essential for the skeletal structure of corals. It promotes a stable, hard structure and supports natural growth with metallic shimmering tissue. A strontium deficiency, on the other hand, can lead to color loss, growth disorders, and increased susceptibility to parasites, especially in stony corals.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e10 ml per 100 liters of seawater increases the strontium content by +2 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e2 mg strontium per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e","brand":"Doktorfisch Produkte","offers":[{"title":"Default Title","offer_id":53489873518935,"sku":"90151","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/SR-1L.jpg?v=1778149939"},{"product_id":"doktorfisch-additive-strontium-250ml","title":"Doctor Fish Additives Strontium 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e10 ml per 100 liters of saltwater increases the strontium level by +2 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e2 mg strontium per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eAdditive Sr:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Strontium is a highly concentrated strontium solution specifically developed for reef aquariums to precisely compensate for strontium deficiencies. Strontium is essential for coral skeletal formation. It promotes a stable, hard structure and supports natural growth with metallic shimmering tissue. A low strontium level, on the other hand, can lead to color loss, growth disorders, and increased susceptibility to parasites, especially in stony corals.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489873781079,"sku":"90141","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/SR-250ml.jpg?v=1778149947"},{"product_id":"doktorfisch-additive-strontium-500ml","title":"Doctorfish Additive Strontium 500ml","description":"\u003cp\u003eDoktorfisch Additives Strontium 500ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489874174295,"sku":"N\/A","price":13.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/SR-500ml.jpg?v=1778149956"},{"product_id":"doktorfisch-additive-stickstoff-1000ml","title":"Tang Additive Nitrogen 1000ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml to 100 liters of seawater increases the nitrate level by +1 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e2 mg nitrate per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003cp\u003eDoktorfisch Additive Nitrogen is a highly concentrated nitrogen solution aimed at individually compensating for nitrogen deficiencies. When nitrate and phosphate levels in an aquarium become imbalanced, it not only leads to increased algae growth but also often affects corals. They stop growing, their colors fade, and in the worst case, their tissue dissolves. Our Additive N is characterized by its high purity.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489877549399,"sku":"90152","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/N-1L.jpg?v=1778149982"},{"product_id":"doktorfisch-additive-stickstoff-250ml","title":"Doctorfish Additive Nitrogen 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml per 100 liters of seawater increases the nitrate level by +1 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e2 mg nitrate per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eAdditive N:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Nitrogen is a highly concentrated nitrogen solution designed to individually balance nitrogen deficiencies. If the nitrate and phosphate levels in an aquarium become unbalanced, this not only leads to increased algae growth but also often affects corals. They stop growing, their colors fade, and in the worst case, the tissue dissolves. Our Additive N is characterized by its high purity.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003e1 ml per 100 liters of seawater increases the nitrate level by +1 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch1\u003e🌊 \u003cstrong\u003eDoktorfisch: Your Brand for High-Quality Marine and Reef Aquatics Products\u003c\/strong\u003e\n\u003c\/h1\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in marine aquaristics. We develop great additives and care products specially designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in marine aquariums. When you choose Doktorfisch, you can rely on a brand that combines scientific know-how, many years of practical experience, and the highest purity. This ensures a healthy, colorful, and stable reef.\u003c\/p\u003e\u003ch2\u003e🧪 \u003cstrong\u003eOur Mission in Marine Aquaristics\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWe want to help you make your aquariums a true feel-good place for fish, corals, and microorganisms. Whether you are looking for a reef aquarium with corals, water additives, or specialized mineral salts for surgeonfish – you will find everything your heart desires with us. We develop all our products according to strict quality standards and base them on current scientific findings from marine biology and chemistry. We naturally ensure that your water values remain stable and your reef grows healthy in the long term.\u003c\/p\u003e\u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The Brand for Effective Reef Care \u0026amp; Stable Water Chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWith Doktorfisch, you choose products that help you build a marine aquarium that runs stably and shines in full beauty. Our solutions do just that. They strengthen the biology of the reef, reduce unwanted fluctuations, and create an environment in which corals can unleash their full potential. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides the right support.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489879351639,"sku":"90143","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/N-250ml.jpg?v=1778149997"},{"product_id":"doktorfisch-additive-stickstoff-500ml","title":"Doctorfish Additives Nitrogen 500ml","description":"\u003cp\u003eDoctorfish Additives Nitrogen 500ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489880138071,"sku":null,"price":13.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/N-500ml.jpg?v=1778150002"},{"product_id":"doktorfisch-additive-schwefel-1000ml","title":"Doctorfish Additive Sulfur 1000ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e10 ml per 100 liters of saltwater increases the sulfur content by +7 mg\/l and the magnesium content by +5 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e20 mg sulfur per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place, protected from light.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eAdditive S:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Sulfur was developed for the targeted increase of sulfur content (sulfate) in saltwater aquariums. Sulfur is required for skeleton formation and is involved in metabolic processes. A balanced sulfur level also promotes the activity of zooxanthellae, which significantly contribute to the energy supply and coloration of corals. The targeted addition of sulfur supports the ecological balance in the reef system and strengthens the vitality and color intensity of corals.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003e10 ml per 100 liters of saltwater increases the sulfur content by +7 mg\/l and the magnesium content by +5 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch1\u003e🌊 \u003cstrong\u003eDoktorfisch: Your Brand for High-Quality Saltwater and Reef Aquarium Products\u003c\/strong\u003e\n\u003c\/h1\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in saltwater aquaristics. We develop great additives and care products specifically designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in saltwater aquariums. When you choose Doktorfisch, you can rely on a brand that combines scientific expertise, many years of practical experience, and the highest purity. This ensures a healthy, colorful, and stable reef.\u003c\/p\u003e\u003ch2\u003e🧪 \u003cstrong\u003eOur Mission in Saltwater Aquaristics\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWe want to help you turn your aquariums into a true oasis for fish, corals, and microorganisms. Whether you are looking for a reef aquarium with corals, water additives, or specialized mineral salts for surgeonfish – you will find everything your heart desires with us. We develop all our products according to strict quality standards and are guided by current scientific findings in marine biology and chemistry. We naturally ensure that your water values remain stable and your reef grows healthily in the long term.\u003c\/p\u003e\u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The Brand for Effective Reef Care \u0026amp; Stable Water Chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWith Doktorfisch, you choose products that help you build a saltwater aquarium that runs stably and shines in full beauty. Our solutions do just that. They strengthen the biology of the reef, reduce unwanted fluctuations, and create an environment in which corals can unleash their full potential. Whether you operate a nano-reef, an SPS-dominant aquarium, or a large-volume saltwater system – Doktorfisch provides the right support.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489883119959,"sku":"90150","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/S-1L.jpg?v=1778150026"},{"product_id":"doktorfisch-additive-schwefel-250ml","title":"Doctorfish Additives Sulfur 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e10 ml per 100 liters of seawater increases the sulfur content by +7 mg\/l and the magnesium content by +5 mg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e20 mg sulfur per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eAdditive S:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Sulfur was developed for the targeted increase of sulfur content (sulfate) in saltwater aquariums. Sulfur is required for the formation of skeletons and is involved in metabolic processes. A balanced sulfur level also promotes the activity of zooxanthellae, which significantly contribute to the energy supply and coloration of corals. The targeted addition of sulfur supports the ecological balance in the reef system and strengthens the vitality and color intensity of corals.\u003c\/p\u003e","brand":"Doktorfisch Produkte","offers":[{"title":"250 ml","offer_id":53489884758359,"sku":"90160","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/S-250ml.jpg?v=1778150035"},{"product_id":"doktorfisch-additive-schwefel-500ml","title":"Doctorfish Additive Sulfur 500ml","description":"\u003cp\u003eDoktorfisch Additives Sulfur 500ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489885348183,"sku":null,"price":13.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/S-500ml.jpg?v=1778150041"},{"product_id":"doktorfisch-additive-selen-250ml","title":"Doctorfish Additives Selenium 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml per 100 liters of saltwater increases the selenium content by +0.5 µg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1µg selenium per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place, protected from light.\u003c\/p\u003e\u003ch1\u003eDoktorfisch Additive Selenium\u003c\/h1\u003e\u003ch1\u003e\u003cb\u003e\u003cimg src=\"https:\/\/doktorfisch.de\/wp-content\/uploads\/2025\/11\/cropped-doktorfisch_logo_512x512px-2.png\" alt=\"\" width=\"34\" height=\"34\"\u003eAdditive Se:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003eDoktorfisch Additive Selenium is an essential trace element that supports vital antioxidant processes in corals, invertebrates, and fish in very small amounts. This stock solution is used for targeted selenium supplementation in marine aquariums with a proven deficiency.\u003c\/p\u003e\u003ch1\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h1\u003e\u003cp\u003e1 ml per 100 liters of saltwater increases the selenium content by +0.5 µg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003chr\u003e\u003ch1\u003e🌊 \u003cstrong\u003eDoktorfisch: Your Brand for High-Quality Marine and Reef Aquaristics Products\u003c\/strong\u003e\n\u003c\/h1\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in marine aquaristics. We develop great additives and care products specifically designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in marine aquariums. When you choose Doktorfisch, you can rely on a brand that combines scientific expertise, many years of practical experience, and the highest purity. This ensures a healthy, colorful, and stable reef.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003e⚛️ \u003cstrong\u003eOur Mission in Marine Aquaristics\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWe want to help you make your aquariums a true feel-good place for fish, corals, and microorganisms. Whether you're looking for a reef aquarium with corals, water additives, or specialized mineral salts for Doktorfisch – you'll find everything your heart desires with us. We develop all our products according to strict quality standards and base them on current scientific findings in marine biology and chemistry. We naturally ensure that your water values remain stable and your reef grows healthily in the long term.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003e🔍 \u003cstrong\u003eDoktorfisch: The Brand for Effective Reef Care \u0026 Stable Water Chemistry\u003c\/strong\u003e\n\u003c\/h2\u003e\u003cp\u003eWith Doktorfisch, you choose products that help you build a marine aquarium that runs stably and shines in full beauty. Our solutions do just that. They strengthen the biology of the reef, reduce unwanted fluctuations, and create an environment where corals can fully develop their potential. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides the right support. Whether you operate a nano reef, an SPS-dominant aquarium, or a large-volume marine system – Doktorfisch provides you with the right support.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489888100695,"sku":"90008","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Se-250ml.jpg?v=1778150066"},{"product_id":"doktorfisch-additive-selen-50ml","title":"Doktorfisch Additive Selenium 50ml","description":"\u003cp\u003eDoktorfisch Additives Selenium 50ml\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"Default Title","offer_id":53489888985431,"sku":"N\/A","price":9.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/Se-50ml.jpg?v=1778150072"},{"product_id":"doktorfisch-additive-vanadium-250ml","title":"Doktorfisch Additive Vanadium 250ml","description":"\u003ch3\u003e\u003cb\u003eDosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e1 ml to 100 liters of seawater increases the vanadium content by 5 µg\/l.\u003c\/p\u003e\u003cp\u003eShake well before use.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eMaximum daily dosage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e2 µg vanadium per liter\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eStorage:\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eStore in a cool, dry place away from light.\u003c\/p\u003e\u003cp\u003eDoktorfisch Additive Vanadium is an important trace element that supports various biochemical processes in the aquarium system. It is associated with metabolic processes that can promote the general vitality and color development of corals.\u003c\/p\u003e\u003cp\u003eDoktorfisch stands for quality, precision, and passion in marine aquaristics. We develop great additives and care products specially designed to stabilize water parameters, promote coral growth, and sustainably support the natural balance in marine aquariums.\u003c\/p\u003e","brand":"Doktorfisch","offers":[{"title":"250 ml","offer_id":53489889902935,"sku":"90188","price":19.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/7699\/1319\/files\/V-250ml.jpg?v=1778150079"}],"url":"https:\/\/rifflabor.de\/en\/collections\/spurenelemente-zusaetze.oembed","provider":"RiffLabor","version":"1.0","type":"link"}