The Hawaiian Black Arag-Alive! aragonite from Caribsea is an excellent choice for new aquarium enthusiasts and setups of new coral reefs. The Arag-Alive sand quickly clears and contains millions of live bacteria, speeding up your aquarium's cycle and leading to less unwanted algae.

• Contains live bacteria for faster cycling
• Grain size: 0.25 - 3.5mm
• High surface area for bacteria

Choosing the right sand: When selecting the right sand for your aquarium, it's important to consider a few things.

• How much flow will there be in the aquarium? Aquariums with high water flow will require sand with larger grain sizes. Smaller particles can be easily pushed around.
• What inhabitants will you be hosting? Many species require specific types of sand, such as gobies, jawfish, and wrasses. Fish and invertebrates that like to burrow or sift through the sand will do better with smaller particle sizes.
• Will it be used for refugium or deep sandbed? For sand that will be used for filtration or refugium, it is recommended to use smaller particles that will provide bacteria with a larger surface area to grow and thrive.

How much sand do I need?

It is recommended to use 1 pound of sand for every 2 gallons of aquarium volume.

Tags: marine aquarium aragonite