Is this concerning?

[Notsolostfish]

I was discussing my tank, with a fellow reefer, and i was showing my PH chart, and he made me concern he said i have big dips. I drop to 8.16 at night sometimes with co2 scrubber. And next day i go up to 8.28-8.3 is that a big drop in PH at night?

 

[CasperOe]

That's a small drop, nothing to worry about.