Makes tap water safe for fish by removing harmful compounds and adding beneficial substances.At times it is necessary to add tap water to the pond, following maintenance or evaporation. Tap water is designed for human use, and therefore contains high levels of chlorine to kill germs. In addition, it may contain varying levels of toxic heavy metals. Both chlorine and heavy metals are toxic to fish, and will cause them long-term damage and stress. Leaving water to stand will not remove all of these factors, and so is not an alternative to using a water conditioner. AquaSafe neutralises harmful elements in tap water, and adds beenficial substances to create healthy, fish-friendly water.Contains special compounds that eliminate chlorine and chloramine, and bind up heavy metals.Contains colloids that coat the fish, protecting them against infection.Unlike most water conditioners, AquaSafe leaves no residues and is completely broken down to harmless substancesApplication:Add 50ml of TetraPond AquaSafe to every 1000 litres (220 gallons) of water, to remove heavy metals and chlorine. Either treat mains water prior to using it in the pond, or treat the whole pond with AquaSafe prior to topping it up with mains water. For improving fish health and aiding wound recovery, add AquaSafe at 25ml per 1000 litres (220 gallons) every 2-3 weeks.