Tri-Guard Water Conditioner has a triple action compound that nuetralizes chlorine, chloramines and ammonia. Makes tap water safe.
Add 1 oz. for every 600 gallons of pond or aquarium water. Use 2 oz. per 600 gallons of water if ammonia is dangerously high. By doubling the dose it will bring high ammonia to safe levels within minutes. Test kits will still show high levels of ammonia but it will be in a non toxic form.