| sera pH-minus for the safe reducing of the pH value in the fresh and sea water. In case of pH values above 7.0 and KH values above 6°dKH add 5 ml sera pH-minus per 20 litres of aquarium water. In case of pH values of 7.0 or lower add 1 - 2 ml sera pH-minus per 20 liters of water. Before and during the application the pH value and the KH value has to be controlled. |
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Sera pH-minus