General KH Alkaline Buffer 150g

Phosphate free. For those sensitive situations such as planted tanks running CO₂:  General KH Alkaline Buffer slowly raises KH (carbonate hardness) by approximately 1dKH or 18ppm at a time. Being an alkaline buffer, it has a high pH and this counteracts the acidity from the CO₂, stabilising pH and reducing stress on fish. Suitable for both fresh and salt water aquariums.

Directions: 1 level teaspoon or 5g to 60 litres of water will raise KH by approximately 1dKH or 18ppm and will raise and stabilise pH. For planted tanks using CO₂ systems, use cautiously with small doses to avoid large pH increases.