Copper treatment for external parasites. Active at low concentrations (does not precipitate). Attached to amine, less toxic to fish. Cupramine effectively eradicates Oodinium, Cryptocaryon, Amyloodinium, Ichthyophthirius and other ectoparasites from freshwater and marine fish. It is better than copper sulfate, chloride and citrate: it is non-acidic, less toxic to fish, remains dilute (does not precipitate) and does not contaminate the bed filter. It is fully charged (ionic), active at low concentrations and removable with carbon. Cupramine is easily removed by chemical filtration. It is highly effective and safe in freshwater as well as saltwater. 50 ml treats 2000 l.