Chelated copper treatment recommended for the treatment of ick, flukes, anchor worms, velvet, protozoan diseases and other external parasites. CopperSafe is a chelated copper compound that is used for the treatment of infections. Chelated copper treatment for the treatment of ick, flukes, anchor worms, velvet, protozoan diseases another external parasi. Intended for exclusive use with ornamental fish and/or other ornamental organisms. Do not overdose. Chelated Copper Sulfate, Fish Care Guide, Medication-4 Oz. Bottle: Size: 4 oz.