Three day withdrawal time. Powder is added to the water. Concentration depends upon degree of anesthesia, species, size, water temperature, water hardness, and stage of development. Preliminary tests of solution should be made with a few fish. Twenty-one day withdrawal time.
Aqueous solution is added to the water.
ICE - Used to reduce metabolic rate of fish during transport. Used in all freshwater species. Used to treat external crustacean parasites, and to deter sea lice from infesting external surfaces of salmonids at all life stages. Used to prevent or treat thiamine deficiency in salmonids. These amounts will treat approximately 400,000 eggs.