Brightwell Aquatics - REEF CODE B#149; The carbonate-bearing component of a two-part method for dosing calcium and carbonates (thesubstances largely responsible for increasing alkalinity (buffering capacity)) in the same ratio as thatfound in natural seawater.#149; Ionically-balanced with respect to natural seawater concentrations of calcium and carbonates when usedin equal amounts with REEF CODE A.#149; Benefits reef-building organisms such as corals, clams, calcareous algae, etc.#149; Simplifies calcium and alkalinity maintenance.#149; Stronger than most competing products.#149; Contains no phosphate, silicate, or organic material.#149; Formulated by a marine scientist.Liquid20-L - UPC: 810086010516