Seachem Cupramine is a highly effectively treatment for Oodinium, Cryptocaryon, Amyloodinium, Ichthyophthirius and other ectoparasites.  Seachem Cupramine remains in solution and does not contaminate the filter bed. Seachem Cupramine is superior to copper sulfate, chloride and citrate. It is non-acidic and less toxic to fish as well. May be used for both freshwater and saltwater aquariums and is easily removable with chemical filtration.