Caribsea Buffer Plus is used to buffer systems for a correct pH range from 8.1 to 8.3 and to maintain these values. Buffer Plus also releases calcium and strontium into your system in safe doses. Buffer Plus stabilizes the alkalinity and calcium values in your seawater system over the long term.
The optimal pH range for saltwater aquariums is between 8.1 and 8.3. The carbonate hardness should be in a range between 9.8 and 12.6 dKH.