Waterlife Myxazin P is a broad spectrum bactericide which treats Fin Rot Body Rot ulcers wounds abrasions sores raised veins blood streaks \"redness\" Pop Eye Cloudy Eye and other bacterial infections. Always check water quality parameters before attempting disease diagnosis. Myxazin P may also be used as a prophylactic treatment (for disease prevention) in order to reduce the risk of disease when new fish are introduced. It is safe for use with fish plants and filtration bacteria. 500ml bottle - 5 day course for 3260 litres. Also available in 125ml 1 Litre bottles.