The carbonate-bearing component of a two-part method for dosing calcium and carbonates (the substances largely responsible for increasing alkalinity ("buferring capacity") in the same ratio as that found in natural seawater.
Ionically-balanced with respect to natural seawater concentrations of calcium and carbonates when used in equal amounts with Reef Code A.
Benefits reef-building organisms such as corals, clams, calcareous algae, etc. Simplifies calcium and alkalinity maintenance. Stronger than most competing products. Contains no phosphate, silicate, or organic material. Formulated by a marine scientist.