Hello,
To be fair, this current system is the only one, in 16 years of sps, that I tested or measured ph. 8.33 is a great number, I peak at 8.2, but family of 4, smaller home, in Florida, ahhhhh, I digress. I have been trying to reach 8.3, but through my efforts, still not there. That said, as long as I am 7ish on alk, I can't get too upset with ph. I like a lower alk, that to me is where I see "my" best results for acro growth and color. It's a more forgiving number with lowered nutrients. My system runs inherently low for "tested" nutrients, but my throughput is heavy, heavy in, heavy out. I am still chasing ph, fuge lit opposite cycle, drawing fresh air to my skimmer, dripping kalkwasser, and still not at the 8.3 number, so if you are there, kudos, sustain and keep alk stable to nutrient levels, higher alk with higher nutrients, and vice-versa. I would focus more on consistent feeding/ throughput and consistent alk and temp. To me, in this, ph sort of falls where it may

Cheers,