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Sera Water Hardness Test gH 15ml

Original price was: د.م. 90,00.Current price is: د.م. 75,00.

To easily determine the total hardness
For about 420° dGH (x 1.78 = TH French value).
In case of too low total hardness, we recommend sera mineral salt. Too high total hardness can be lowered by mixing the water with osmosis water.
To obtain soft water, we recommend the addition of sera blackwater aquatan or filtration through sera super peat.

Weight 0,08 kg

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