Grotech KH + CA 1 5000ml liquid for rapid increase of carbonate hardness
The liquid for rapid increase of carbonate hardness.
Addition of 50ml KH + CA1 increases the carbonate hardness with 2 ° KH at 100 l of water.
The ideal value is at about 8 ° KH. The KH value reflects the pH buffer ability of the water.
Too low KH value presents the risk of a pH trap.