CaribSea Arag-Alive Hawaiian Black

Now you can bring the world's most exotic reefs into your home with CaribSea's Arag-Alive!™ substrates.

Arag-Alive!™ makes setting up an aquarium easy. It's ready to go, cleans up quickly, and contains millions of live bacteria to cycle super fast and create a natural biological balance. Arag-Alive! ™ eliminates the dreaded "new tank syndrome", compresses the ammonia cycle and discourages harmful algae.

In fact, independent labs prove that Arag-Alive!™ cycles days faster than other brands of living sand. This is what makes Arag-Alive!™ the choice of new aquarists and maintenance businesses where speed of installation, beauty and reliability are demanded.

Typical size: 0.25 – 3.5 mm
Average density: 80 pounds per cubic foot