Substrate

CaribSea products offer a number of unique looks for various habitat simulation purposes. The Caribbean Curshed Coral's spherical and uniform shape results in good flow rates and makes it very popular with reverse flow filtration popular in many public aquariums. Learn More

CaribSea Coraline Think Pink 20 lbs Learn More

Rinse until water coming out changes from milky to cloudy and place in aquarium then add water. It may be easier to place a flat object on the substrate to run water onto, (such as the empty substrate bag or a plate), to minimize churning the substrate. Learn More

"The Engineered Aragonite!" CaribSea's marine substrates are recognized worldwide for their purity and precision. Our aragonite is purposely engineered and free of impurities such as ash, metals, pesticides, and silica which allows you to create a safe and beautiful environment for your fish and invertebrates. Learn More

"The Engineered Aragonite!"
CaribSea's marine substrates are recognized worldwide for their purity and precision.

Our aragonite is purposely engineered and free of impurities such as ash, metals, pesticides, and silica which allows you to create a safe and beautiful environment for your fish and invertebrates.

Learn More

Only CaribSea’s Arag-Alive!™ Live Sands contains not just the broad spectrum of marine bacteria found in the ocean, but additional specially selected strains of marine bacteria as well. Arag-Alive!™ compresses new tank cycle time and suppresses the initial ammonia spike. Arag-Alive!™ creates a natural biological balance, and makes cycling a new aquarium faster and safer. Live rocks and most invertebrates can be added immediately. Gradually introduce fish within the first 3 weeks, and do not exceed one inch of fish per 5 gallons during this time.

CaribSea Arag Alive Fiji Pink- This soft pink colored, 100% aragonite substrate is a good intermediate sand size product. The precise 0.5 - 1.5mm grain size combines some of the animal friendly properties of fine sand such as ingestability and low resistance to burrowing, but with better diffusive flux properties and good porosity. This is also the standard choice for reef aquariums at 1 pound per gallon.

You can now bring the world's most exotic reefs into your home with CaribSea's Arag Alive substrates. It is developed from CaribSea's cooperation with public aquariums and zoological parks, where authenticity is a must. From the alluring black sands of the Indo Pacific to the bright white oolite of the Bahama Banks, the colorful and textured Bimini Pink and the uniquely uniform Fiji Pink, Arag Alie has you covered with seven exotic microcosms to choose from.

Learn More

CaribSea Arag Alive Special Grade Reef Sand 20 lbs. Only CaribSea's Arag-Alive!™ Live Sands contains not just the broad spectrum of natural marine bacteria found in the ocean, but additional specially selected strains of marine bacteria as well. Arag-Alive!™ compresses new tank cycle time and suppresses the initial ammonia spike. Arag-Alive!™ creates a natural biological balance, and makes cycling a new aquarium faster and safer. Live rocks and most invertebrates can be added immediately. Gradually introduce fish within the first 3 weeks, and do not exceed one inch of fish per 5 gallons during this time. Special Grade Reef Sand - Grain Size 1.0 - 2.0 mm. This coarse sand is 100% aragonite and has excellent diffusive properties. A very versatile product, use in a deep or shallow beds. A significant denitrator when utilized in deeper beds or plenum systems. Learn More

CaribSea Arag Alive Bahama Oolite - You can now bring the world's most exotic reefs into your home with CaribSea's Arag Alive substrates. It is developed from CaribSea's cooperation with public aquariums and zoological parks, where authenticity is a must. From the alluring black sands of the Indo Pacific to the bright white oolite of the Bahama Banks, the colorful and textured Bimini Pink and the uniquely uniform Fiji Pink, Arag Alie has you covered with seven exotic microcosms to choose from. Grain size 0.1 - 1.0 mm Learn More

West Caribbean Reef - Grain Size 1.0 - 2.0 mm + shells. Natural grain sizes incorporates fine sand to rubble size fractions. Interesting texture and colorful natural highlights. Great for jawfish when used in a deep bed.

You can now bring the world's most exotic reefs into your home with CaribSea's West Caribbean Arag Alive substrates. It is developed from CaribSea's cooperation with public aquariums and zoological parks, where authenticity is a must. From the alluring black sands of the Indo Pacific to the bright white oolite of the Bahama Banks, the colorful and textured Bimini Pink and the uniquely uniform Fiji Pink. Arag Alive has you covered with seven exotic microcosms to choose from.

Learn More