RPS Biologiques Supratect is a versatile, 100% natural solution made entirely out of plant based ingredients. The scientifically formulated solution is designed to treat a wide variety of common fungal and parasitic ailments such as ick. Non-toxic and safe for all fish, plants and invertebrates, this high quality additive will help ensure your fishy friends stay happy and healthy. Comes in a 120 ml bottle and treats up to 253 gallons of aquarium water.