discourage nuisance algae. Arag-Alive™ contains millions of bacteria per pound specially engineered for aggressive waste reduction in closed systems like your aquarium. Arag-Alive™ is engineered to suppress “new tank syndrome” and compress the ammonia cycle. It begins to cycle your aquarium

Indo-Pacific Black - Grain Size 0.2 - 2.0 mm. Re-create an authentic Indo-Pacific fringing reef environment such as Indonesia, Hawaii, and the Pacific Rim. Dramatic natural dark substrate highlights the colors of the regions indigenous aquatic life. Spectacular!