Melafix 64 fl ozHeals open wounds & abrasions, treats fin and tail rot, eye cloud, mouth fungus and promotes regrowth of damaged fin rays & tissue. Will not adversely affect the biological filter, alter the pH, or discolor water. Safe for reef aquariums and live plants. For use in fresh or salt water. Shake well before each use. For best results, remove activated carbon during treatment. As a disease treatment: Add 1 tbsp. for every 150 gallons or 1 4 cup for every