Avaiable in 2 different size: 300g/size S, 1.2kg/size M, 

Seachem Alkaline Buffer is a non-phosphate buffer to raise pH and alkalinity (KH) of planted tanks. It does not cause algae or cloudiness even in hard water.

Seachem Alkaline Buffer is used in conjuction with Seachem Acid Buffer. Both buffers are suitable for adjusting the water pH of planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem.

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

DIRECTIONS

To increase pH, use 1 teaspoon (6 g) for every 80 L (20 US gallons) daily until desired pH is reached (this dose raises alkalinity by about 1 meq/L (2.8 dKH)). For precise dosing, use the Seachem Digital Spoon Scale.