How to use:
Each month, add 600g per 5,000 litres of pond water (KH increases by approximately 4 degrees dH). Repeat if required, especially after heavy rainfall or before using anti-algae products and remedies. Overdoses are not dangerous. KH increase per 5,000 litres of pond water: 600g approx. 4 degrees dH/300 g approx. 2 degrees dH/50g approx. 1 degrees dH.