Sold by Charterhouse Aquatics  and others
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At times it is necessary to add tap water to the aquarium, as part of a water change or a top-up. 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 works by instantly neutralising these harmful substances, and should be used every time new water is added to the aquarium. In addition, AquaSafe also reduces stress, promotes wound healing and protects against infection, and adds a protective coating to the fish. How it WorksAquaSafe contains special compounds that eliminate chlorine and bind up heavy metals. In addition, it contains colloids that coat the fish, protecting them against infection. AquaSafe also contains stress-reducing vitamins, and compounds that inhibit bacteria and fungi. All this means that your fish are well protected against the harmful effects of tap water, and the stress of water changes. How to UseAdd AquaSafe to new tap water at a rate of 5ml per 10litres (2gallons), to make it safe prior to doing a water change. AquaSafe can also be added directly to the aquarium at the same dosage, to act as a general stress-reliever. When preparing water for water changes, it is best to treat it with AquaSafe in a bucket beforehand, and use boiled tap water to warm it to the same temperature as the aquarium.