CaribSeas Arag-Alive! You can now bring the worlds most exotic reefs into your home with CaribSeas Arag-Alive! substrates. Eight environmentally accurate ecoscapes, developed through CaribSeas cooperation with public aquariums and zoological parks where authenticity is a must, Arag-Alive! makes any aquarium uniquely yours. Arag-Alive! makes it easy to set up an aquarium. Its ready to work, clears quickly, and contains millions of live bacteria to cycle super fast and create a natural biological balance. Arag-Alive! suppresses the dreaded new tank syndrome, compresses the ammonia cycle, and discourages nuisance algae. In fact, independent labs prove Arag-Alive! cycles days faster than other brands of live sand. Thats what makes Arag-Alive! the choice of new aquarists and maintenance companies where speed of set up, beauty, and reliability are demanded. About CaribSea Live Products When setting up an aquarium with CaribSea`s live products please do not rinse the substrate! The susbtrate should be carefully placed on the bottom of the aquarium, and your preconditioned water should be added carefully. Cloudiness will be greatly reduced if a plate or empty bag is used to stop the water being added from disturbing the substrate underneath. FAQ and Tips Do I rinse Arag-Alive! before use? No! Rinsing Arag-Alive! could harm the spored beneficial bacteria in the product. Can I reseal and store unused Arag-Alive! for later use? Yes, if sealed tightly Arag-Alive! will still remain effective for another couple months. Hawaiian Black Specifications Typical Grain Size: 0.25-3.5mm Average Density: 80 lb/ft Manufacturer Info At CaribSea we take aquariums seriously. Since 1972 we have supplied hundreds of public aquariums, zoos, aquaculture facilities, public and private institutions, and hundreds of thousands of dedicated aquarists with the highest quality marine and freshwater products. CaribSea has been in the forefront of the principle that substrates are a piece of equirment, not just a decorative afterthought. Caribsea substrates are as precisely engineered as any piece of advanced equipment used by today`s hobbyists and professionals. CaribSea products are the chemical support, biological filtration, and biodiversity backbone for many of the most spectacular aquatic displays ever created. We are now celebrating our 35th year in the business, and our product line has continued to grow; making CaribSea your aragonite source and so much more.