FL Crushed Coral Arag-Alive! Live Aragonite Reef Sand contains millions of live bacteria to create a natural biological balance in your reef tank.
Contains live bacteria to assist with a faster cycle

If you have a saltwater aquarium and you would like to minimize the amount of maintenance you have to perform in order to optimize your bacteria populations and suppress algae growth, CaribSea Arag-Alive Natural Reef Aquarium Gravel is the perfect solution for you. It features specially selected marine bacteria that have been engineered to suppress "New Tank Syndrome" and compress ammonia cycles. It also helps maintain a proper pH of 8.2 without the constant addition of chemicals for the life of the aquarium making this aquarium sand safe for all invertebrates. Use this aquarium sand to discourage the growth of nuisance algae by creating and supporting biological balance to your saltwater aquarium. This aquarium gravel also aids in the growth of corals and never needs replacement making maintaining your "showstopper" of an aquarium even easier. 

Why use ARAG-Alive? Just pour this "real" gravel into your aquarium and you are all ready to go! 

Grain size: 3-5.5mm
Great for aquariums with home-building pistol shrimp
High Surface Area for Bacteria