Bring the world’s most exotic reefs home with CaribSea’s Arag-Alive! Set up your tank quickly and easily with Arag-Alive!, as this substrate clears quickly and contains millions of live bacteria ready to cycle super fast to create the perfect natural biological balance. Eliminate the dreaded “new tank syndrome” by compressing the ammonia cycle and discouraging nuisance algae with Arag-Alive!. Independent labs prove this substrate cycles days faster than competing live sand - that’s what makes Arag-Alive! the choice of new and experienced hobbyists, companies, and public aquariums everywhere who are looking for fast set up, stunning beauty, and consistent reliability.