How much does everyone's ph fluctuate over a 2 day period? I've noticed mine floats between 7.8 & 8.2 sometimes may 8.4. I've been mostly focusing keeping my kh stable.
Y would mine be changing? Kh is 7-8. I do have my temp up at 88 for ick with a lot of surface agitation. The extra o2 cause it? Fish don't seem stressed. I don't think I'm going to mess with it. My gh is on the low side at 5 but i don't think that affects ph.
PH is on a 24/7 probe, 7.8 to 7.5, with .15 day to night variations due to lots of plants, adding or removing CO2.
I buffer with baking soda. After a week with out a water change pH will be around 7.5.