Oxygenated water is healthy and good for fish and plant's, notice in fish only tank's, the bubbler? adding 02, the fish and plants both benefit from that in a planted tank, except in planted tanks, it needs to be regulated somewhat.
Lift the spraybar or lily pipe to break the surface of the water, I do it at night after lights and C02 are off.
As mentioned above by TAF CAF, I don't worry about C02, ph or any of that, add the gas during photoperiod, then losen the caps on your bottles and lift the spraybar to surface for nightly aeration of the water.
You will be able to sleep in peace. you also need to get rid of the icky, that is stressfull enough on the fish, C02 does not help in that situation.
Hope this helps to clarify.
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