Kent Superbuffer-dKH is a specially formulated pH buffer and alkalinity or carbonate hardness (KH) builder, designed to adjust the pH of saltwater aquariums to the range of 8.0 to 8.3 and build the KH. Designed to mix clear with little or no cloudiness or precipitationWill not flake on your corals as other competing products canCompatible with and designed for use with Kalkwasser Mix, Liquid Calcium, or Turbo-Calcium by Kent Marine