Aquatic Nature Nitrate Stop M Absorbs nitrate from the aquarium in an efficient manner via ion exchange.
It is recommended tu use Aquatic Nature Carbo Marine (evaporation activated active carbon) for one week, by which time the organic materials will be absorved and the function of Nitrat Stop M can be accelerated.
For further information visit the manufacturers website > http://www.aquatic-nature.be/2eng_bacteries.html