Internal and external anti-bacterial Remedy.Effective against skin discolouration ulcerous wounds, inflammations, mouth fungus, cloudy eyes, 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.BACTONIL -FW user attention: Remove carbon and zeolite from the filter. Replace them after 10 days of treatment. The usage shall be on days 1,2,3,5,7 or as advised by your aquatic professional. Stop treatment when the symptoms disappear. Do a 25% water change daily if necessary.DOSAGE:10 ml per 100 litres of water.Free:- Foodie Puppies Key Ring.