Kent Marine C aids in enhancing the immune systems of fish and invertebrates. It also helps to facilitate the metabolism of fatty acids and stimulates the repair of damaged tissue caused by coral propagation, and bacterial/parasitic infestations. Daily use of Marine C provides ornamental marine fish and invertebrates with a source of stabilized high grade Vitamin-C compounds. Protein skimming and activated carbon may be continued when dosing this product. Vitamin-C is often deficient in aquariums where no previous supplmentation has been done. Does not require refrigeration or freezing after opening, however refrigeration will prolong useful life.