A filtering media consisting of specific resins which adsorb phosphates and silicates found in fresh and saltwater aquariums and do not release the adsorbed substances in the water. It is recommended that phosphate concentration in freshwater aquariums does not exceed 0.3 mg/l as this promotes the ideal conditions for algae growth, whereas in saltwater aquariums it is highly recommended that the phosphate concentration does not exceed 0.1 mg/l otherwise this condition affects the natural process of calcium absorption by organisms in the aquarium which require this vital substance such as red coralline algae, hard corals.



 No phosphates