Waterlife Haloex is a fast acting dechlorinator and water conditioner. This award winning water treatment works fast to neutralise chlorine, chloramine, fluorine and other toxins present in tap-water which are damaging to fishes, invertebrates and plants. The special formula of Haloex will also reduce stress in your fish, reinforcing the body\'s protective mucus (helping to prevent disease) and improve tissue growth after an infection. Haloex should be used when initially filling your aquaria and when carrying out subsequent water changes. Uses: Dechlorinator Water conditioner Binds heavy metals Naturally coats and protects fish\'s gills and body 100ml treats up to 1000 litres (222 Gallons) Suitable for Coldwater, Marine and Tropical Aquariums