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Colombo aqua KH test

£6.99 Inc VAT

4 in stock

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KH test for an accurate determination of the carbonate hardness KH in pond -and aquarium water. The KH value indicates the carbonate hardness. Is the KH value is too low, then the pH value can exhibit rapid fluctuations. If the value is at least 5 KH is the pH-value remains stable. A KH value of 8 is optimal.