CaribSea Caribbean Crushed Coral 40 lb.

Caribbean Crushed Coral is full of millions of bacteria that are beneficial to any marine aquarium, engineered for aggressive waste reduction. With the ability to compress ammonia, in new tanks it is proven to help cycle the aquarium days earlier. With the small grains it is perfect with any sand sifting or burrowing organism. It is gentle on the soft bellied rays and sharks. Available in two sizes to fit both small and large aquariums.