PH and CO2 - do I really just ignore it
I am getting toward the end of my fishless cycle and approaching stocking time. I'm starting to check my PH. I've never had a true planted tank or CO2 injection before. Now that I do, I feel nervous about the PH swings I see.
Seems like in the morning, my PH is of 7.4 or a bit higher. Once my CO2 is on for a few hours, it falls to 7.0 to 6.8. According to me drop checker, I have the right amount of CO2 in the tank, so I'm hesitant to reduce my input. At the same time, however, I feel nervous for my fish.
When I first started the tank, I added one dose of Alkaline buffer to raise the KH, before reading here that this is considered an act of lunacy. That's probably mostly cleared now, thanks to a 50% WC. I'll also do more WCs before I add fish (to reduce nitrates).
If I'm still seeing this kind of swinging in my PH as my CO2 runs throughout the course of the day, should I be nervous or am I good to go?