You can now bring the world's most exotic reefs into your home with CaribSea's Arag-Alive substrates. It is developed from CaribSea's cooperation with public aquariums and zoological parks, where authenticity is a must. Arag-Alive helps maintain a proper pH for the life of your aquarium without the constant addition of chemicals, and creates a biological balance to 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 instantly. In fact, independent labs prove Arag-Alive cycles your aquarium days faster than other brands.

Functional and beautiful aragonite substrate for all types of marine aquariums

Contains millions of beneficial marine bacteria to enhance biological filtration

Many styles to help recreate any marine environment