Glossary
Magnesium
Mg²⁺. Reef target: 1,300–1,400 ppm.
Inhibits calcium carbonate precipitation. Low magnesium (<1,200) causes Ca and alk to both crash together. Above 1,500 ppm offers no benefit.
Recommended
Test kit for magnesium.
Affiliate links. As an Amazon Associate, reefcalcs earns from qualifying purchases.
Related
Browse more terms
Last reviewed