Characteristics: ACTION: lowering the value of Ammonia (NH3) and Phosphate (PO4) in freshwater and saltwater aquariums BENEFITS: effectively counteracts the growth of algae by eliminating the accumulation of Ammonia (NH3) and Phosphate (PO4) from the water. It makes the water crystal clear in a natural way, prevents the formation of unpleasant odors USE: directly in the aquarium if an excessive concentration of Ammonia (NH3) or Phosphate (PO4) is detected in order to prevent or reduce an uncontrolled and unwelcome algae proliferation. Rinse thoroughly before use under running tap water. It is also possible to use Zeolite as a preventative of the occurrence of pollution problems