API Pimafix Antifungal Treatment alleviates symptoms such as fungus or cottony growth on fins, mouth and body fungus, and reddening of fins and body. API Pimafix Antifungal Treatment is safe for use in reef aquariums and will not harm the biological filter or invertebrates, such as live corals and anemones. Use dosing cap on bottle to treat effectively, using 5 ml per 38 liters of aquarium water. Follow directions on product label.