Aquarium & Terrarium Gravel & Substrate Carib Sea

Ideal aquarium substrate for marine, reef or african cichlid aquariums. Helps maintain proper pH of 8.2 wthout the use of chemicals. Has incredible surface area, up to 100,000 sq inches per pound.

Premium aquarium sand that is pH neutral and will not increase carbonate hardness. Unique sand sized grains resist the collection of detritus, fish waste and food within the substrate bed. Makes maintenance easy.

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. Arag-Alive helps maintain a proper pH for the life of your aquarium without the constant addition of chemicals, and creates a biological balance to discourage nuisance algae. Arag-Alive contains millions of bacteria per pound specially engineered for aggressive waste reduction in closed systems like your aquarium. Arag-Alive is engineered to suppress "new tank syndrome" and compress the ammonia cycle. It begins to cycle your aquarium instantly. In fact, independent labs prove …

Biologically and mineralogically complete sand substrate for saltwater aquariums. Contains specially engineered bacteria to suppress "new tank syndrome". Discourages nuisance algae. Never needs replacement.

Aquarium gravel with precise grading to permit free flow of nutrients and oxygen to nitrifying bacteria. Keeps water clear. Resists packing channeling and anaerobic dead spots beneath decor.

Beautiful marine substrate packed with millions of heterotrophic, autotrophic, and chemolithotrophic bacteria. Huge beneficial bacteria population aids in waste reduction and dramatically reduces cycling time in new setups. Use alone or to kick-start existing substrate bed. Arag-Alive is specially egineered to supress "new tank syndrome" and compress the ammonia cycle. It's like having a nitrite and nitrate filter, ammonia reducer, and a high-capacity biological filter for your marine aquarium. Includes Bio-Magnet clarifier to clear water fast and enhance biological efficiency. Arag-Alive marine substrates contain aragonite, a source of calcium, carbonate, and beneficial trace elements to, naturally …

Biologically and mineralogically complete sand substrate for saltwater aquariums. Contains specially engineered bacteria to suppress ";new tank syndrome";. Discourages nuisance algae. Never needs replacement.

Samurai Soil is the ideal substrate for planted aquaria and freshwater shrimp. It will not affect pH or hardness, will not disintegrate, and is clean and ready to use. Ideal for shrimp or fish tanks, perfect for an aquatic plant substrate.

Beautiful marine substrate packed with millions of heterotrophic, autotrophic, and chemolithotrophic bacteria. Huge beneficial bacteria population aids in waste reduction and dramatically reduces cycling time in new setups. Use alone or to kick-start existing substrate bed. Arag-Alive is specially engineered to suppress "new tank syndrome" and compress the ammonia cycle. It's like having a nitrite and nitrate filter, ammonia reducer, and a high-capacity biological filter for your marine aquarium. Includes Bio-Magnet clarifier to clear water fast and enhance biological efficiency. Arag-Alive marine substrates contain aragonite, a source of calcium, carbonate, and beneficial trace elements to,…

The secret to successfully keeping African Cichlids begins with Eco Complete African Cichlid Substrates. These mineralogically complete substrates contain aragonite to maintain the high pH African Cichlids need. Eco Complete Cichlid Substrates add calcium, magnesium, carbonate and more to recreate the African Rift Lake environment. Naturally buffers aquarium water to combat downward pH drift in African Cichlid tanks without the constant use of additives. Eco Complete African Cichlid Substrates are packed with live, water-purifying bacteria to jumpstart the cycling process. Its high internal surface area allows more room for water purifying bacteria to thrive. Also packed in a water conditioner …

The secret to successfully keeping African Cichlids begins with Eco Complete African Cichlid Substrates. These mineralogically complete substrates contain aragonite to maintain the high pH African Cichlids need. Eco Complete Cichlid Substrates add calcium, magnesium, carbonate and more to recreate the African Rift Lake environment. Naturally buffers aquarium water to combat downward pH drift in African Cichlid tanks without the constant use of additives. Eco Complete African Cichlid Substrates are packed with live, water-purifying bacteria to jumpstart the cycling process. Its high internal surface area allows more room for water purifying bacteria to thrive. Also packed in a water conditioner …

Eco-Complete Planted Aquarium Substrate contains more than 25 minerals to nourish aquatic plants. Coarse substrate packed in Liquid Amazon buffered "Black Water" solution, Eco-Complete offers immediate organic water conditioning - no rinsing required. Coarse Eco-Complete substrate includes live, Heterotrophic bacteria to convert fish waste into natural food for your plants. Both original Eco-Complete Black and Eco-Complete Red are iron rich and eliminate the need for laterite supplementation. 2 pounds of substrate per gallon is optimal.

Biologically and mineralogically complete sand substrate for saltwater aquariums. Contains specially engineered bacteria to suppress "new tank syndrome". Discourages nuisance algae. Never needs replacement.

Biologically and mineralogically complete sand substrate for saltwater aquariums. Contains specially engineered bacteria to suppress ";new tank syndrome";. Discourages nuisance algae. Never needs replacement.

Packaged in a breathable bag with a thin film of real ocean water (sand will be damp) to preserve 1,000 times more living bacteria than other preservation methods - no added chemicals or special processing. Ocean Direct aragonite live sand ensures faster, safer initial cycling and better bio-filtration throughout the life of your reef system. Delivers millions of living bacteria per pound, reduces nitrate, enhances buffering for the life of your system, and discourages nuisance algae. Also aids coral growth and resists the precipitation of carbonate minerals. 77% of Original Grade Substrate is, by weight, less than 1 mm in size (most of that are smaller than 0.66 mm).

Packaged in a breathable bag with a thin film of real ocean water (sand will be damp) to preserve 1,000 times more living bacteria than other preservation methods - no added chemicals or special processing. Ocean Direct aragonite live sand ensures faster, safer initial cycling and better bio-filtration throughout the life of your reef system. Delivers millions of living bacteria per pound, reduces nitrate, enhances buffering for the life of your system, and discourages nuisance algae. Also aids coral growth and resists the precipitation of carbonate minerals. 77% of Original Grade Substrate is, by weight, less than 1 mm in size (most of that are smaller than 0.66 mm).

The secret to successfully keeping African Cichlids begins with Eco Complete African Cichlid Substrates. These mineralogically complete substrates contain aragonite to maintain the high pH African Cichlids need. Eco Complete Cichlid Substrates add calcium, magnesium, carbonate and more to recreate the African Rift Lake environment. Naturally buffers aquarium water to combat downward pH drift in African Cichlid tanks without the constant use of additives. Eco Complete African Cichlid Substrates are packed with live, water-purifying bacteria to jumpstart the cycling process. Its high internal surface area allows more room for water purifying bacteria to thrive. Also packed in a water conditioner …

The only crushed coral with aragonite, which provides up to 25 times the buffering power of other crushed corals, dolomite, or oyster shell. Will eliminate chronic pH problems and provide maximum surface area for water purifying bacteria. Allows an increase in bioload by up to 50% and it will never need to be replaced. Can be used with calcium, but also carbonate buffer and essential trace elements such as strontium (up to 10,000 ppm). Mixed Grade. Grain size: 2.0 -5.5mm.

Beautiful and versatile Seaflor Special Grade Reef Sand is the perfect substrate for reef aquariums. Use as a gorgeous substrate or as a functional substrate for nitrate-reducing systems such as Plenum or Berlin systems. Consistent grade aragonite substrate allows for better dissolution of minerals, like calcium and carbonates. The addition of small shells makes it ideal for aquariums with mature jawfish or burrowing invertebrates. 1.0 to 2.0 mm grain.

Enjoy creative aquascaping options with budget - AND reef-friendly base rock. CaribSea South Seas Base Rock is zero-aquatic-impact reef rock perfect for any marine, reef, brackish or African cichlid aquarium. Beautiful and functional aquascaping rock boasts unsurpassed micro and macro porosity due to natural weathering. Over the course of eons, erosion and pitting of limestone create the attractive architectural shapes you see in each and every unique piece! CaribSea South Seas Base Rock is perfect for a wide variety of aquarium styles including marine, reef, saltwater fish-only setups, African cichlid tanks and any hard water aquarium.