Reef Sculpture Part A and Reef Sculpture Part B, when used together and as directed are an ionically balanced calcium and alkalinity control system. Unlike many other products which will cause a buildup of chlorides or other ions, Reef Sculpture will maintain seawater ratios of important ions. When used as directed it will maintain calcium and buffering capacity in the same ratio found in natural seawater. 

PART B: Is the Alkalinity or buffering half of the Reef Sculpture supplement. When used as directed (and with Part A) it will maintain calcium and buffering capacity in the same ratio found in natural seawater.

PART A: Is the Calcium half of the Reef Sculpture supplement. When used as directed (and with Part B) it will maintain calcium and buffering capacity in the same ratio found in natural seawater.