Cures fungus, mouthrot and finrot, treats affected fish and prevents the disease spreading. Breakthrough formula for use in coldwater or tropical aquariums Increasing aeration is highly recommended during treatment as medications can reduce the oxygen carrying capacity of the water Use at the first sign of disease outbreak, if fish become too sick it will be too late to expect the treatment to work. Keeping healthy water conditions are key to avoiding fish disease It is important to shake the bottle vigorously for 30 seconds before use and remove all carbon and zeolite filter media from the aquarium. If not shaken well the dose will be incorrect Only use 1 fish medication at a time, but any of the water quality treatments can be used at the same time as a medication Item display volume: 100.0 milliliters. Age range description: All Life Stages.