11-20-2012, 11:37 AM
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Originally Posted by magpie
More great info - thanks to both of you. Now, my questions are about time... I know part of this depends on the tank size, how many leaves and what type, but how quickly do the leaves change the pH and how much do they drop it? I guess I just put a couple in there and see what happens.
How often should I be checking the pH to monitor this? Weekly before each water change?
And could I expect fairly rapid changes with the buffering, or does this also take time?
My water is very soft.
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It takes a fair number of leaves to make any significant change.
I have a 10g planted tank in which I am presently growing out 3 Farlowella vittata fry. My GH is near zero, same with KH, so no buffering. The tap water pH is 7. This tank has been running for many months, with plants and a couple chunks of wood. I put in about 4 or 5 oak leaves every week after the partial water change. The pH has remained at 7. Now, this doesn't mean your situation would be identical. The specifics of each tank's biology impact this.
As for the buffering, if you add calcareous substances like dolomite, it again depends on the individual tank. But within a week or so you should see the pH rising. I always go slow with this, as it can suddenly jump.