Effectively treats bacterial diseases such as Fin Rot, Ulcers, Infectious Dropsy and Ascites. Effectively treats fungal diseases such as Fin Rot, Saprolegnia sp. Infection and Achlys. Effectively treats ectoparasite diseases such as White Spot, Velvet, Gill Worms, Flukes, Anchor Worms and Fish Lice. For quarantine use when introducing new fish into tanks.