Dosage:

1 ml per 100 liters of saltwater increases the selenium content by +0.5 µg/l.

Shake well before use.

Maximum daily dosage:

1µg selenium per liter

Storage:

Store in a cool, dry place, protected from light.

Doktorfisch Additive Selenium

Additive Se:

Doktorfisch 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.

Dosage:

1 ml per 100 liters of saltwater increases the selenium content by +0.5 µg/l.

Shake well before use.

🌊 Doktorfisch: Your Brand for High-Quality Marine and Reef Aquaristics Products

Doktorfisch 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.

⚛️ Our Mission in Marine Aquaristics

We 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.

🔍 Doktorfisch: The Brand for Effective Reef Care & Stable Water Chemistry

With 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.