09-07-2013, 10:38 AM
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Originally Posted by Agent13
but GH isn't as important as the KH ..right?
Just making sure I understand water chemistry correctly as well. KH is what will more so impact the PH and cause unstable PH if messed with..correct?
kH and CO2 affect pH.
Plants actually needs both carbonate (KH) and GH. But gH does not affect pH.
In fact plants in a low co2 environment will actually start using KH to get carbon.
To me this actually means that pH is not all that important. After all I'm not aware of any fish the suffers in a low CO2 high oxygen environment. Even if the pH is very high.
But I have had tank with high KH and GH that stressed out more delicate fish needing softwater (Low pH),