Active Ingredients: Methylene Blue
Methylene Blue is effective against superficial fungal infections of fishes. The drug may be used as an alternative to Malachite Green for the control of fungus when it is known that the fish to be treated are sensitive.
Methylene Blue is safe for use with fish eggs and fry for the prevention of fungal infections. As a secondary use, it is effective against some external protozoans, such as Ichthyophthirius (Ich), Chilodonella and Costia.
Methylene Blue is very effective when used as part of a “medicated fish bath” for treatment of ammonia, nitrite, and cyanide poisoning as well as for topical and internal treatment of injured or sick fish as a “first response”.
- For attacks on fish eggs, use a solution of methylene blue adding 3 to 5 mg/l as a preventative measure after the eggs are laid.