Marc Weiss Coral Vital LSB (Live Sand Booster). (16oz.) Coral Vital LSB will primarily impact on the non-photosynthetic detritus consuming, substrate organisms while Coral Vital and Reef Vital NVA are primarily skewed towards the photosynthetic organisms such as corals and coraline algaes. The LSB formulation is designed to adhere to the substrate including live and base rock making it more receptive to colonization. Use together with our other products for the best overall results in the aquarium. Coral VitalLSB puts detritus consuming organisms into overdrive! Energizes non-photosynthetic microfauna and microflora. When used with properly designed aragonite sand beds, such as Caribsea's reef sands, can make trace elements immediately bioavailable! Convservatively stocked aquaria may not even need supplementation of calcium, magnesium, strontium, iodine, boron, etc. at all! Higher density tanks may get by with small water changes! It is a bio-accelerator to help live sand from compacting and clumping. Keeps pore structure of live rock open while destroying ammonia, nitrites and nitrates. Helps keep biofilters cleaner and aids in preventing media from clogging. Used by professional live sand and rock aquaculturists including CaribSea, Inc. to make the substrate more receptive to colonization and grow, condition and ship their products! Very economical; little is needed; dosed weekly.