Live Sand (“LS”) is essentially a combination of non-living substrate with a myriad of tiny beneficial life forms that grows on it. It is home to many microscopic biological bacteria. LS can form as a main base for biological filtration in a marine aquarium, while the living organisms in the sand bed can help consume the organic matters. LS can be collected live from the ocean, or can be cultured from a non-living oral sand to make it live. The quickest method in starting a marine aquarium is to use 100% LS which are commercially sold in bags. Using this method, there is no waiting period or delay in the biological cycling process for the beneficial bacterial to establish themselves... Read more»