General kH Buffer
 
Phosphate free.  General kH Generator raises carbonate hardness by approximately 1dkH (18ppm) at a time for those sensitive situations like planted tanks running Co2 etc.  As it has a high pH, this counteracts the acidity from the Co2, stopping pH fluctuation to create pH stability and reducing stress on fish. Suitable for both fresh and salt water aquariums.
Directions:
 
Add 1 teaspoon (5g) to 60 litres of water to raise carbonate hardness by approximately 1dkH (18ppm)