Kent Marine Turbo Strontium provides bio-available strontium for the lush growth of calcareous algae, snails, hard tube worms and clams. Corals will open more and attach to their skeletons better with regular use. Kent Marine Turbo Strontium does not contain any phosphates, nitrates, gluconates, EDTA, or other organics that raise DOC levels, which many other competing products do. This product is the main ingredient used in other strontium supplements, and is available to you in this economical dry form. For best results possible, we suggest you use this product in conjunction with Kent Kalkwasser Mix, Concentrated Liquid Calcium, or Kent Turbo Calcium. Please refer to the product guidelines for the amounts to use and the optimum frequency of use.