Ocean Direct™ substrate is different than all other live sand products on the market. Ocean Direct™ utilizes “Sea Breathe” technology, which preserves real live sand with its own original bacteria. Read more
CaribSea Ocean Direct™ Original Grade Substrate
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. Ocean Direct™ provides you with a thriving, natural aquarium in minutes!
Typical Size: 0.25-6.5mm
Average Density: 87lbs per cubic foot
Substrate Layer: 1.27-5.1cm / 0.5-2" depth
18.1kg / 40lb