I think most folks use a semi automated method for CO2, both Amano and myself suggest that method, add CO2 during the day time only.
We both arrived at the conclusion independently.
But because I do agree, does not mean I agree with everything he says, but it's a good bet if we both agree, then it's likely to be a good method.
Other items we both suggested: large weekly water changes and dosing thereafter frequently.

There is no advantage adding CO2 at night, plants do not use and fish sure do not like it when the O2 levels are also lower due to plants not producing O2.

When you do add CO2 during the day, you can add more as the fish also have more O2 from the plants during that time and there is less chance of CO2 build up.

We add CO2 to fertilize the plants, not to control pH, that is just used from measurement.

With a good CO2 system, you can do it only with the lights on.
Many add CO2 about 30-60 minutes before the lights come on and shut it off about 30-60minutes before the lights go off.

That way there is plenty of CO2 as soon as the lights come on till night time.

This method saves CO2, less risk to livestock, simpler etc.

Regards,
Tom Barr