FAQ: Will Seachem Reef Complete® affect my alkalinity, pH, magnesium, or other major water parameters?

Reef Complete® exclusively increases calcium, and while it does include magnesium and strontium in the proper proportion to maintain coral growth, these minerals are not present in high enough concentrations to have a noticeable effect on your water parameters.  However, keep in mind that saltwater parameters are maintained in careful balance with each other.  Altering any one parameter too drastically or too suddenly can throw other parameters out of balance.  In the case of Reef Complete®, dramatically increasing the calcium can cause carbonate precipitation, leading to decreased alkalinity and pH.