Each grain contains the exact mix of 70 trace elements found in natural saltwater. Unique production process ensures these elements are maintained in solution to provide the natural biosphere necessary to grow and breed delicate marine fish, plants, and invertebrates. Pro-Reef Salt is specifically formulated with optimized calcium and magnesium levels to promote optimal coral health and growth. Its unique buffering system and pH level have been adapted to accommodate the use of calcium supplements or calcium reactors to help simplify the care of even very sensitive hard corals. Please click on "More Information" for directions for use. | ||||||||















