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Re: [APD] CO2/pH swings

Mark Vanvick wrote:

I have recently cut back on the CO2 duration time(12 hrs. on
> during the day-12 hrs. off at night) to conserve CO2 because
> I have a W/D filter and use a lot of CO2 when it runs continuously.

CO2 is cheap, I'd just let it run.

I doubt the pH swing will hurt the fish, but it certainly
won't help plant growth any.

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