BINDING PHOSPHATE RELIABLY AND PERMANENTLY
 
ATI phosphate stop is a high-phosphate absorber on an iron hydroxide base. Phosphate is particularly effectively removed from the seawater, freshwater or pond water. Once bound phosphate cannot be removed. Even with a longer service life of the filter material no phosphate is transferred to the aquarium water. ATI phosphate stop is optimally suited for use in reef aquariums because it emits no pollutants to the water.

The element phosphorus and its compounds are essential for many vital processes that are established in the tank. Increased levels of phosphorus, however, may be harmful or even toxic. Thus, the corals often react with a resolution of tissue to an increase in the concentration of phosphates. 

The natural concentration of phosphate in seawater is 0.003 to 0.58 mg/l, as described in the scientific literature. In our aquariums, a limit of 0.1 mg/l (in the optimum range of 0.01 to 0.1 mg/l) should not be exceeded. This low concentration of phosphate allows a sustained growth of hard corals, preventing the uncontrolled proliferation of unwanted algae.