PARAGUARD 250ML- 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:...