Marine Substrates

Caribsea arag-alive Fiji pink live sandYou can now bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eigh...

Caribsea Live Ocean Direct Sand Original 40Lbs Simply Natural – Enjoy this real Caribbean live sand in a breathable bag with no added chemicals or ...

Caribsea arag-alive Fiji pink live sandYou can now bring the world’s most exotic reefs into your home with CaribSea’s Arag-Alive!™ substrates. Eigh...

Arag-Alive achieves rapid cycling by preparing and seeding the substrate grain surfaces with a wide variety of marine bacteria, most in a spored st...

Caribsea Live Ocean Direct Sand Original 20LbsThis substrate is different than all other live sand products on the market. Ocean Direct™ utilizes “...

Caribsea Florida Crushed Coral is the only crushed coral with aragonite, which provides up to 25 times the buffering power of other crushed corals,...

Caribsea Live Ocean Direct Oolite Sand 40LbsThis substrate is different than all other live sand products on the market. Ocean Direct™ utilizes “Se...

Caribsea Fiji Pink Reef Sand (Dry) 15LbFiji Pink Reef Sand: 0.5-1.5 mm diameter grain size. A gently hued aragonite, CaribSea Seaflor Pink Fiji Ree...

CaribSea's Mineral Mud is an unique blend of sediments that duplicate tropical fringing costal mangrove environments. Mineral Mud is in a size rang...