• Liquid ionic calcium source specially formulated for reef aquariums • High concentration of 160,000 mg/L, higher than most similar products • 100% soluble, no milky residues and no need to shake before use • Restores and maintains calcium levels to natural seawater values without altering pH • Calcium and carbonates are essential for the growth and health of corals • Includes magnesium and strontium in appropriate proportions to maintain the balance of essential minerals • Prevents calcium and carbonate deficiencies that can halt coral growth and affect their health • Allows you to maintain essential elements for reef aquariums, promoting a healthy environment for corals