Stress Coat is used by aquarium hobbyists and professionals worldwide. The removal of chlorine from tap water is essential for tropical fish. Stress Coat can be used for your freshwater,saltwater and reef systems. Other benefits include the Aloe Vera in Stress Coat. This helps reduce the stress from water changes, transporting and crowding by providing fish with a synthetic slime coating. Every aquarist should have Stress Coat for the health of their fish. Manufactured by Aquarium Pharmacueticals.