The carbon release phosphates in the aquarium, creating big problems. The answer to this is Renew. This product is less aggressive than coal, making it better for planted aquariums and reef. Removes organic residues, does not alter the pH and does not release phosphates and at the same time helps to control ammonia, nitrates and phosphates.
Instructions for Use
Replacing the activated carbon. A bag of 250 ml can 'treat 120-160 lt. of water. Do not remove the product from the bag. Rinse before use. The duration is the same of the activated carbon (4-6 weeks).