Waterlife Poolshield makes tap water safe for use in garden ponds. This is an advanced, fast-acting dechlorinator and water conditioner, that neutralises toxins in tap-water such as chlorine, chloramine, and fluorine. Poolshield also contains the soothing properties of Aloe Vera, which protects the fishes mucus coating. This product is to be used when filling up your pond and topping up from evaporation losses. It is safe with all pond fish and plants and will not damage filtration bacteria. Poolshield comes complete with full instructions and with a handy measuring cup to make dosing as simple as possible.