Originally Posted by JimD
I test in in the late afternoon, after my lights have been on for more then a few hours. I do know PH drops at night so I'm assuming my 8.1 probably goes south a few points from there at night. I don't have a sump (yet) so I'm not able to run a reverse cycle to balance out the CO2 PH shift. I know buffers are not loved by everyone, but until I figure out a good way to run a sump, it's the best way I know how for now to keep up the PH. This all may change though after this weekend with the softened/ro/di water, I will have to test the base ph of the water first to know where to go from there.
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