Sera pH Minus 250ml

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Safely lowers the pH of the water. Enough for 400 liters of water. Sera pH-minus effectively reduces the pH value in freshwater aquariums. It is easy to dose. In case of values abo ve 7.0 and KH values of more than 6ºdKH, add 5 ml of Sera pH-minus for every 20 liters of aquarium water. For pH values of 7.0 or less and/or KH values of less than 6° dKH, add 1-2 ml of Sera pH-minus per 20 litres of water. After 12 hours, check the pH and KH values again. If necessary, add Sera pH-minus again. Show more