Nitrofurazone is the active ingredient in Furan 2. It is an antibiotic that may have anti-protozoan properties. Can be used as a preventative as well as to treat disease. Effective against Columnaris, Flexibacter, Black Molly Disease (Flavobacterium columnaris), Bacterial Gill Disease, Aeromonas, Excess Body Slime, Cloudy Eye, Streptococcus, Furunculosis, Fin and Tail Rot, Marine external… Continue reading Nitrofurazone Powder