I just set up a new tank (upgrade from a 3yr old 70g to a new 120). I'll admit that with the 70g, I got lazy after about a year, and I would never test anything. I could tell if the Ph got a little low b/c the fish would "pant" more. With the new (dream)tank, I decided to splurge on a controller (ACjr), and I just set up the Ph probe last night.
The probe was showing a Ph of 8.46 in the evening and 8.32 in the morning. (Fuge light on 24/7 right now). Now, since this is a new(ish) tank with a lot of $$ in it, I'm being extra careful.
Is the 8.46 Ph too high? If so, will going back to a reverse photoperiod keep me more in the 8.3 range?