Substrate

• A blend of high-purity aragonite particulate grades to simulate the natural substrate particle profile of tropical reef lagoons.
• Multiple particulate grades encourage biochemical reactions (e.g. nitrification and denitrification) within the sediment to facilitate continuous release of constituent ions (calcium, carbonate, strontium, magnesium, potassium, and sixty minor and trace elements), encouraging the growth of reef-building organisms and helping stabilize pH.
• Over 39% calcium and 57% carbonate by dry weight.
• Applications include refugia, sea grass and macroalgae bed systems, mangrove systems, and other methods of filtration employing substrate to facilitate natural reduction of organic and nitrogenous waste, and reef aquaria of all sizes (notably nano-reef systems).
• Formulated by a marine scientist.

Purple Up has a unique dual method approach to coralline algae acceleration:

Purple Up has a unique dual method approach to coralline algae acceleration:
• Ionic calcium: Immediately raises dissolved calcium levels in your aquarium water
• Ten micron aragonite: Targets the live rock surface, where it dissolves in situ (in place), delivering calcium, strontium, magnesium and carbonate right where it is needed

Other Features
• Iodine Replenishment: PurpleUp replenishes iodine, an essential element for coralline algae tissues that quickly becomes depleted in closed systems.
• Easy to use. One bottle of Purple Up replaces the typical multi-product recipe for successful coralline algae growth favored by advanced aquarists.
• Contains Super Sea Calcium, a natural calcium derived from pristine tropical oceans.
• Treats up to 4730 gallons.

The Sera Floredepot Long Term Gravel Substrate is for freshwater aquariums.

FloraBase is a patented, scientifically formulated substrate produced from natural volcanic ash-based soil, sintered with other minerals into a soft, porous, granular structure.

Kent Marine Biosediment is a blend of aragonite, calcite, and other minerals; it is not any mere aragonite substrate.  Marine Biosediment has been formulated in ratios that not only provide a much more natural substrate composition and density than using plain aragonite alone, but also to slowly dissolve as a result of natural solubility and close-proximity bacterial respiration, simulating the processes at work in sediment found on reefs, in lagoons and sea grass beds, and around mangroves.  Rather than being a blend of terrigenous (terrestrial in initial origin, i.e. silica sand, humus, etc.) particles, Marine Biosediment is composed of minerals naturally occurring in the afore-mentioned marine habitats, and therefore brings the aspiring hobbyist one step closer to providing his/her aquarium inhabitants a truly representative piece of the ocean. Over time, Marine Biosediment slowly releases trace amounts of calcium and other elements due to microbial processes taking place below the surface of the substrate; again, this simulates natural cycles taking place in benthic marine ecosystems.

0.2-1.2 mm grain size. Also known as “oolitic sand,” this product is ideal for shallower beds, allowing de-nitrification in as little as 1″ depth. The fine grain size can pass easily through the gills of gobys and other sand sifting organisms. White in color and metal free. No ash or silica.

Florida Crushed Coral is the only crushed coral with aragonite, which provides up to 25 times the buffering power of other crushed corals, dolomite, or oyster shell. It eliminates chronic pH problems and provides maximum surface area for water purifying bacteria. CaribSea’s Florida Crushed Coral with aragonite allows an increase in bio-load by up to 50% and it never needs replacement. No rinsing required. At CaribSea they take the aquarium hobby seriously. Since 1972 they have supplied hundreds of thousands of aquarists, public aquariums, and mariculture facilities with millions of pounds of the highest quality marine substrates. CaribSea substrates have become the backbone of today’s cutting edge marine systems with a miracle mineral called aragonite. CaribSea, in an exclusive contract with the only aragonite mine in the world, supplies aquarists with 10 grades of aragonite “crushed coral.” Now every hobbyist, from beginner to reef keeper, can enjoy this revolution in aquarium keeping.

Florida Crushed Coral is the only crushed coral with aragonite, which provides up to 25 times the buffering power of other crushed corals, dolomite, or oyster shell. It eliminates chronic pH problems and provides maximum surface area for water purifying bacteria. CaribSea’s Florida Crushed Coral with aragonite allows an increase in bio-load by up to 50% and it never needs replacement. No rinsing required.At CaribSea they take the aquarium hobby seriously. Since 1972 they have supplied hundreds of thousands of aquarists, public aquariums, and mariculture facilities with millions of pounds of the highest quality marine substrates. CaribSea substrates have become the backbone of today’s cutting edge marine systems with a miracle mineral called aragonite. CaribSea, in an exclusive contract with the only aragonite mine in the world, supplies aquarists with 10 grades of aragonite “crushed coral.” Now every hobbyist, from beginner to reef keeper, can enjoy this revolution in aquarium keeping.

• 760 cubic inches.
• 1-1.7 mm grain size aragonite. Perfect type for plenum-type reef systems

• 280 cubic inches.
• 1-1.7 mm grain size aragonite. Perfect type for plenum-type reef systems.