RS Bulk Magnesium Sulfate (1 LBS)

Maintaining proper magnesium levels prevents excess calcium carbonate precipitation, achieving the essential balance of calcium and alkalinity in your reef tank. Reef Supplies Bulk Magnesium Sulfate is a fine powder that dissolves crystal clear. Unlike traditional magnesium sulfate, it has no excess water molecules, ensuring faster dissolution and residue-free mixing with magnesium chloride.

Please note that is it JUST sulfate. Please visit this page If you are looking for our 2 part mix.