Cloverleaf Formalin Water Answer is a potent antiparasitic treatment formulated to combat stubborn protozoan infections in ornamental fish. This concentrated solution effectively targets white spot, Tricodina, Chilodonella, and Costia—parasites that commonly affect Koi and Goldfish. With its enhanced formulation, it delivers reliable results where standard treatments may fall short. The 250ml bottle provides sufficient dosing for multiple treatments, making it an essential addition to any serious fish keeper's medicine cabinet. Ideal for quarantine tanks or established systems, this professional-grade remedy restores fish health and water quality when parasitic outbreaks threaten your collection.