CaribSea , ARAG-ALIVE! – Natural Reef Substrate

Typical Size: 3.0 - 5.5mm Average Density: 85 pounds per cubic foot Item: 16 lb bag Product Description: Bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eight environmentally accurate ecoscapes, developed through CaribSea’s cooperation with public aquariums and zoological parks where authenticity is a must, Arag-Alive!™ makes any aquarium uniquely yours. Arag-Alive!™ makes it easy to set up an aquarium. It’s ready to work, clears quickly, and contains millions of live bacteria to cycle super fast and create a natural biological balance.