Internal and external anti-bacterial Remedy. Effective against skin discoloration ulcerous wound, inflammations, mouth fungus, cloudy eye, pop eye, fish bite and fin rot.A broad spectrum anti-bacterial remedy, effective against ulcerous wounds, mouth fungus, fin rot, reddish patches on the body and physical injuries. It is suitable for use in hospital/quarantine fish tanks. A temporary yellow shading may appear during this product application.BACTONIL –FW is generally prescribed for all common diseases of flowerhorn, arowana and discus in combination with PARACIDOL-FW or STRESS HEAL.