CaribSea Ocean Direct Caribbean Live Aquarium Sand Saltwater Reef Substrate Fish Tank Sand

DescriptionCaribSea Ocean Direct Caribbean Live Sand is alive and breathing with up to 100 times more beneficial bacteria than other preservation methods. Every grain of Ocean Direct is coated with bacteria and encapsulated by capillary action in a thin film of real ocean water. The thin film is open to the atmosphere for unparalleled gas exchange. This results in high counts of natural and beneficial bacteria with no noxious build-up of metabolic by-products.Features: Discourages nuisance algae and aids the growth of living corals; No silica; Contains more than 7,000 ppm naturally occurring StrontiumIncludes: 1 BagIntended For: AquariumsMaterial: SandColor: TanSize: 5 lb