- Suitable forfor 10.000 litres of water
- Suitable forfor 5000 litres of water
- Suitable forfor 2500 litres of water
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- View the instruction video
KH Plus increases the carbonate hardness (CH value) of the pond water. Just like the general hardness, this CH value is expressed in German degrees of hardness (GH). A satisfactory high value (6 to 8 °GH) fights acidity in pond environment and ensures proper development of oxygen producing plants, owing to bound CO2.