Caribsea Seaflor Special Grade Reef Sand Seaflor 15 lb. bag. 1.25 - 1.95 mm diameter grain size. A revolution in reef-keeping! This is the one you've been reading about in all the hobbyist publications. This grade of aragonite is specifically engineered for plenumtype nitrate reducing beds or anywhere a deeper bed is called for. The pore water space created by precision grading also allows maximum pH support and dissolution of calcium carbonate.

Caribsea Flamingo Pink Reef Sand Seaflor 15 lb. bag

Caribsea Fiji Pink 15 lb. bag Seaflor substrate.

Caribsea Aragamax Select 15 lbs.

Caribsea Seaflor Special Grade Reef Sand 44 lb. bag. 1.25 - 1.95 mm diameter grain size. A revolution in reef-keeping! This is the one you've been reading about in all the hobbyist publications. This grade of aragonite is specifically engineered for plenumtype nitrate reducing beds or anywhere a deeper bed is called for. The pore water space created by precision grading also allows maximum pH support and dissolution of calcium carbonate.

RAW Aragonite from Caribsea. 40 lb bags.

Caribsea Florida Crushed Coral 10 lb. bag, aragonite based, helps maintain pH to 8.3. It's the only crushed coral with aragonite, which provides up to 25 times the buffering power of other crushed corals, dolomite or oyster shell. Eliminate chronic pH pr

Caribsea Florida Crushed Coral 15 lb. bag, aragonite based, helps maintain pH to 8.3. It's the only crushed coral with aragonite, which provides up to 25 times the buffering power of other crushed corals, dolomite or oyster shell. Eliminate chronic pH problems and provide maximum surface area for water purifying bacteria. CaribSea's Florida Crushed Coral with aragonite allows an increase in bioload by up to 50% and it never needs replacement! Approx. 2 - 5mm diameter (1/8 - 1/4 in.). This product is also able to be utilized in calcium reactors and plenum systems to deliver not only calcium, but also carbonate buffer, and essential trace elements such as strontium (up to 10,000 ppm!).

Caribbean Crushed Coral 20 lb. bag, calcium carbonate based, great for deep sand beds and fish tanks. This item is a special order item that is drop shipped direct from Caribsea.

Caribbean Crushed Coral 40 lb. bag, calcium carbonate based, great for deep sand beds and fish tanks. This item is a special order item that is drop shipped direct from Caribsea.

Caribsea Florida Crushed Coral 40 lb. bag, araganite based, helps maintain ph to 8.3.

Caribsea African Cichlid Mix 20 lb bag. Finally substrates designed specifically for the advanced cichlid enthusiast. This new formula is derived from a rare dark colored calcium carbonate which will not only maintain an exceptionally high pH and carbonate hardness but also discourage cichlids from fading into the background. A must for healthy, vibrant African Cichlids (great for other hard-water freshwater fish too!). Available in 20 and 50 pound bags.

Caribsea African Ivory Coast Sand 20 lbs.

Caribsea Rift Lake Authentic African Cichlid Substrate 20 lb. bag. Finally substrates designed specifically for the advanced cichlid enthusiast. This new formula is derived from a rare dark colored calcium carbonate which will not only maintain an exceptionally high pH and carbonate hardness but also discourage cichlids from fading into the background. A must for healthy, vibrant African Cichlids (great for other hard-water freshwater fish too!). Available in 20 and 50 pound bags.

Caribsea African Cichlid Mix 50 lb bag. Finally substrates designed specifically for the advanced cichlid enthusiast. This new formula is derived from a rare dark colored calcium carbonate which will not only maintain an exceptionally high pH and carbonate hardness but also discourage cichlids from fading into the background. A must for healthy, vibrant African Cichlids (great for other hard-water freshwater fish too!). Available in 20 and 50 pound bags.

Caribsea African Cichlid Mix Congo River 50 lb bag.

Ivory Coast African Cichlid Gravel, 50 lb. bag, CaribSea.

Caribsea Moon Rock 25 lb assorted box. This unusual rock is ideal for aquascaping African Cichlid and livebearer tanks. It, like the African Cichlid Mix, is a dark gray form of calcium carbonate and will aid in pH support. It has an exotic, spectacular appearance that mimics that of the African Rift lakes. Available in 25 pound boxes of assorted sizes approx. 3 in. - 10 inches.

Caribsea Reef Rock 25 lb. assorted box. A spectacular addition to fish or reef tanks. Actual petrified coral! Reef Rock is ideal for use as a base rock on which to attach invertebrates such as anemones, soft and hard corals, etc. Clean and pure, not bleach or chemical treated. Available in 25 or 50 pound boxes of assorted sizes.

Caribsea Honeycomb Base Rock 50 lb. box. This item is a special order item that is drop shipped direct from Caribsea. Creates a striking aquascape in marine or cichlid tanks, and is the perfect base rock for reef tanks. The interesting calcium carbonate rock has many holes for your fish to make their homes or for anchoring invertebrates.

Look Alive Reef Rocks 40 lbs. Assorted. This item is a special order item that is drop shipped direct from Caribsea. A spectacular addition to fish or reef tanks. Actual petrified coral! Reef Rock is ideal for use as a base rock on which to attach inv

Caribsea Reef Rock 50 lb assorted box. A spectacular addition to fish or reef tanks. Actual petrified coral! Reef Rock is ideal for use as a base rock on which to attach invertebrates such as anemones, soft and hard corals, etc. Clean and pure, not bleach or chemical treated. Available in 25 or 50 pound boxes of assorted sizes.

Caribsea Reef Rock Xtra Large approx. 50 lb assorted box. This item is a special order item that is drop shipped direct from Caribsea. A spectacular addition to fish or reef tanks. Actual petrified coral! Reef Rock is ideal for use as a base rock on which to attach invertebrates such as anemones, soft and hard corals, etc. Clean and pure, not bleach or chemical treated. Available in 25 or 50 pound boxes of assorted sizes.

Caribsea Seaflor Aruba Puka Shell Fine 18 lb. bag. This product is the perfect shell substrate. It has buffering capabilities superior to oyster shell, coquina shell, calcite, dolomite, and most varieties of beach collected shell because of its aragonite component. Clean and pure; no dangerous impurities or harmful organisms to endanger your aquarium. Available in 18 and 44 pound bags.

Caribsea Seaflor Super Reef 15 lb. bag.

Caribsea Seaflor Aruba Shell 18 lb. bag. This product is the perfect shell substrate. It has buffering capabilities superior to oyster shell, coquina shell, calcite, dolomite, and most varieties of beach collected shell because of its aragonite component. Clean and pure; no dangerous impurities or harmful organisms to endanger your aquarium. Available in 18 and 44 pound bags.

Macro-Media coarse 50 lb. bag.

M2 Macro Sump 2 gallon refugium starter kit. Contains one gallon of each ARM media and mineral mud.

Caribsea Seaflor Aruba Puka Fine 44 lb. bag. This product is the perfect shell substrate. It has buffering capabilities superior to oyster shell, coquina shell, calcite, dolomite, and most varieties of beach collected shell because of its aragonite component. Clean and pure; no dangerous impurities or harmful organisms to endanger your aquarium. Available in 18 and 44 pound bags.

Caribsea Seaflor Aruba Shell 44 lb. bag. This product is the perfect shell substrate. It has buffering capabilities superior to oyster shell, coquina shell, calcite, dolomite, and most varieties of beach collected shell because of its aragonite component. Clean and pure; no dangerous impurities or harmful organisms to endanger your aquarium. Available in 18 and 44 pound bags.

Caribsea Seaflor Super Reef 40 lb. bag.

Caribsea Mineral-Mud 1 gallon. A unique blend of sediments that duplicate tropical fringing coastal mangrove environments. Mineral Mud is in a size range compatible with soft, burrowing infaunal, macro animal assemblages. Ideal for mud refugiums, seagrasses, macro-algaes, and mangroves, Mineral Mud provides a variety of trace elements, chelated trace elements, natural bio-available iodine, plus calcium, strontium, iron, and free carbon. In addition, Mineral Mud contains live marine bacteria, to complete the tropical ecosystem.

Description: Caribsea NO-NO3 1 gallon. Nitrate troubles? Current research shows that sulfur based denitrators hold promise for significant nitrate reduction in heavily bio-loaded systems. These experimental biologically driven de-nitrator/reactors rely on a combination of pure sulfur, aragonite and sulfur reducing bacteria. NO-NO3 is that media. Go ahead and experiment. CaribSea has you covered.

Eco-Complete African Cichlid SAND Substrate. 20 lb bag in a water packed bag with live bacteria to help maintain proper pH.

Caribsea Seaflor Special Grade Reef Sand (1-2 mm) Aragalive. 20 LBS. WATER PACKED BAG. Only CaribSea's Aragalive contains not just the broad spectrum of natural marine bacteria found in the ocean, but additional specially selected strains of marine ba

Caribsea Indo-Pacific Black (1-2 mm) Aragalive. 20 LBS. WATER PACKED BAG. The same pacific rim ecosystem reef sand as found in Hawaii, Bali, Sumatra, Costa Rica, Tahiti and Java. This sand has a striking combination of jet black volcanic sands and pure aragonite. Salt and Pepper color.

Caribsea Fiji Pink (sugar-sized) Aragalive. 20 LBS. WATER PACKED BAG. Only CaribSea's Aragalive contains not just the broad spectrum of natural marine bacteria found in the ocean, but additional specially selected strains of marine bacteria as well. Aragalive helps control dangerous ammonia levels and reduces nitrate and nitrite. Aragalive creates a natural biological balance, and makes cycling a new aquarium faster and safer. Available in 6 different environments for use in all marine and reef tanks including Plenums, nitrate reduction beds, sumps, fish tanks, and more!

Caribsea Bahama Oolite Aragalive. 20 LBS. WATER PACKED BAG.

Caribsea West Caribbean Reef Aragalive. 20 LBS. WATER PACKED BAG.

Caribsea Florida Crushed Coral Aragalive (No-Rinse crushed coral.) 20 LBS. WATER PACKED BAG. Only CaribSea's Aragalive contains not just the broad spectrum of natural marine bacteria found in the ocean, but additional specially selected strains of mar

Caribsea Torpedo Beach Sand Freshwater natural substrate, 20 lb bag. This item is a special order item that is drop shipped direct from Caribsea.

Caribsea Amazon Freshwater natural substrate, 20 lb bag.

Caribsea Bongo Drum Freshwater natural substrate, 20 lb bag.

Caribsea Simba Freshwater natural substrate, 20 lb bag. This item is a special order item that is drop shipped direct from Caribsea.

Caribsea Torpedo Beach Sand Freshwater natural substrate, 50 lb bag. This item is a special order item that is drop shipped direct from Caribsea.

Caribsea Rio Grande Freshwater natural substrate, 50 lb bag. This item is a special order item that is drop shipped direct from Caribsea.

Caribsea Amazon Freshwater natural substrate, 50 lb bag. This item is a special order item that is drop shipped direct from Caribsea.

Caribsea Bongo Drum Freshwater natural substrate, 50 lb bag.

Caribsea Ramblin' Rose Freshwater natural substrate, 50 lb bag.

Caribsea Simba Freshwater natural substrate, 50 lb bag. This item is a special order item that is drop shipped direct from Caribsea.