Ocean Direct(tm) Caribbean Live Sand

Every bag of Ocean Direct is alive and breathing with up to 1000 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 buildup of metabolic by-products. Discourages nuisance algae and aids the growth of living corals. No silica. Contains more than 7, 000 ppm naturally occuring Strontium.