Blacksea Treat and Cure Reef Safe is a drug that is scientifically formulated to control Whitespot, Velvet, Oodinium Brooklynella Fin and Tail Rot, Flexibacter Columnaris, Velvet but is harmless to corals and Invertebrates. Treat and Cure also removes free-swimming parasites that feed on fish and eventually leave open sores that eventually lead to bacterial infections. Symptoms may include white spots, body fungus, visible sores or sores, discoloration, fish rubbing against objects, loss of appetite and increased breathing. The saltwater form of ich or white spot disease is caused by Cryptocaryon irritans. Ich is caused by an external parasite that causes several white spots on the skin and Bills of your freshwater fish. It is a common parasitic infection in freshwater fish and is one of the few fish parasites that can be seen with the naked eye. However, there are other non-parasitic causes of white spots on fish that need to be removed before treatment is started. Understanding the parasite life cycle is critical to successful treatment.