I'm fighting a low pH issue in my tank. My KH
is around 10-11, but my pH is at 8.0. The good news is that it's holding steady (I take my readings at the same time of day).
I have a HOB
filter to get some gas exchange going (and I use Purigen in it), along with one of my powerheads pointed upwards to get some exchange. Will adding a protein skimmer have an added side benefit of increasing the gas exchange as well? I'd imagine it would, as it injects air into the skimmer column...