Reef Advantage Calcium™ is a non-caustic (pH 8.3–8.6) optimized blend of
ionic calcium designed to restore and maintain calcium to levels found
in natural seawater. Calcium and carbonates are essential to all coral
growth. If either becomes deficient, coral growth will cease, followed
by a rapid decline in coral health.
Reef Advantage Calcium™ also includes magnesium and strontium in amounts
proportionate to typical utilization ratios (100:5:0.1, Ca:Mg:Sr). This
allows one to maintain these two important elements while maintaining
calcium. Unlike limewater (kalkwasser), Reef Advantage Calcium™ does not
have a caustic pH and will not deplete magnesium. Used as directed, it
will not deplete alkalinity.