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I have a 55G tank that has been set up for a year now and the KH keeps going up, I have not changed anything about the tank since setup (except plants & fish).
When I first set the tank up the KH was 6/7, then it went up to 9 over time. Last night I tested the KH and it was 16 :neutral:
May tap water has a KH of 3 and my two other tanks KH stay at a steady 3/4.
What could be causing the rise?
I was thinking either RO water or peat to lower the KH... Which way would you suggest as being the simplest?
My GH is 18 if that helps... I've never had this problem, so if you need more info let me know.
When I first set the tank up the KH was 6/7, then it went up to 9 over time. Last night I tested the KH and it was 16 :neutral:
May tap water has a KH of 3 and my two other tanks KH stay at a steady 3/4.
What could be causing the rise?
I was thinking either RO water or peat to lower the KH... Which way would you suggest as being the simplest?
My GH is 18 if that helps... I've never had this problem, so if you need more info let me know.