Zoo Med NANO 10/30 Activated Carbon Insert media is made from the highest quality carbon available for superior absorption of ammonia waste products produced by captive nano fish. High ammonia levels can be deadly to nano tank fish. Activated carbon is one step in reducing ammonia in your nano tank. We also recommend weekly water changes of at least 20%.
The Zoo Med NANO 10/30 Activated Carbon is made for the Zoo Med NANO filter