Reliable, gentle and easy to use are the convincing attributes of the new Tetra Phosphate Minus. It offers a natural acute remedy for excessively high phosphate values in the aquarium. In contrast to many rival products, it does not cause any clouding of the aquarium water or any deposits on the substrate, according to Tetra. Tetra Phosphate Minus is also suitable for soft water and no minimum carbonate hardness is required. This makes it considerably easier to use and aquarium owners can enjoy a clear view of their underwater environment. www.tetra.net