Help repair tissue damage from bacterial infections and reverse coral degradation with API's Melafix for saltwater fish and coral, the same treatment used by commercial coral farms. Caused mostly by dirty aquarium conditions and infected fish, bacterial infections can affect injured fish with open wounds in seemingly healthy tanks. Illnesses like fin and tail rot, eye cloud, pop eye, body slime and mouth fungus can cause serious tissue and organ damage and can even lead to fish loss if left untreated. This all-natural, antibacterial medication contains the healing properties of tea tree extract to heal bacterial infections, repair damaged fins, help heal ulcers and open wounds and reverses coral degradation. It is safe for biological filters and for all marine and reef aquariums.