I did a couple of pH tests and results were pretty well as expected. In the afternoon, after lights have been on and bright for quite a while, the pH was 8.2. In the morning, before the lights have ramped up, the pH was 7.8. So it is within range, but not totally consistent. I guess the C02 buildup overnight is what drops it.
My test kit (API) is pretty old too, so results may not be totally accurate, although seemed to be what I expected.
Not sure what the results would be with the carbonate (vs the bicarb that I use now). I don't recall what my tests were (long time ago) when I was using sodium carbonate so have nothing to compare to.
Now the question is, should I switch to carbonate for my alk dosing?
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10-09-2015, 05:01 PM
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