API Fungus Cure Powder, 850-Gram Bulk Jar Effectively treats fungus and secondary bacterial infections Use when treating Fungus, Mouth Fungus, Body Slime & Eye Cloud and Fin & Tail Rot For use in fresh water Effectively treats fungus and secondary bacterial infections Use when treating Fungus, Mouth Fungus, Body Slime & Eye Cloud and Fin & Tail Rot For use in fresh water For use in freshwater aquariums Contains 10 powder packets