ADA NA Carbon is quality activated carbon with a high absorption capability of excess waste which often obstruct a balanced condition in the aquarium. The absorption capability of NA Carbon is around 20 times higher than conventional activated carbons. Special treatment enables minimum influence on the pH level of water.
NA Carbon is used primarily when the aquarium is first set up. Activated carbon exhausts its absorption capabilities fairly quickly- usually after around 6-8 weeks. Afer that period of time, the NA Carbon can be left in the filter but it is better to replace it with Bamboo Charcoal or Bio Rio.