Alkaline Buffer is a non–phosphate buffer to raise pH and alkalinity (KH). 

These buffers are designed for the planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem.

Alkaline Buffer raises pH and buffers between 7.2 and 8.5. It is gentle, safe, and enhances the freshwater environment.

To increase pH, use 1 teaspoon (6 g) for every 80L daily until desired pH is reached (this dose raises alkalinity by about 1 meq/L (2.8 dKH)).