Vanish™ will immediately remove chlorine that is present in city water supplies. Chlorine is toxic to fish and when left untreated chlorine can cause gill damage and leave fish unable to breathe. Use Vanish™ when performing water changes or setting up a new pond.CC013-8 Vanish™ Dry, 8 oz Treats 8,000 Gallons
CC013-2 Vanish™ Dry, 2 lb Treats 16,000 Gallons
CC013-25 Vanish™ Dry, 25 lb Treats 400,000 Gallon
