Quote:
Originally Posted by cale262
Mine bounces up and down, Usually peaks around 17:30ish (8.3) and lowest at 02:30 (8.1)....outside temps also affects this, I have an HRV with an exhaust vent directly behind the tank, if the furnace runs more in the day my PH is lower, When it's warmer outside the PH is slightly higher...If I turn off the skimmer for any amount of time while dosing (4hrs etc) the PH drops right down to 8ish. If I have people over and they are in the same room as the tank, I can see the PH drop, then raise after people leave...think this is atributed to Co2 levels in the room etc...Fun to look at the graphs and compair to what was actually going on in the room at the peaks and lows.
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That is kind of what I was thinking as well.