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Discussion Starter · #1 ·
Here is my pH over a day.
CO2 on at 8am (logging started at 7:55)
Lights on at 10am
CO2 off at 4.30pm
Lights off at 8pm (where should CO2 be at lights out)
Surface skimmer off at 6am-9am for feeding window, correlates to slow drop in pH.

Any feedback on timings appreciated.

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