6x Socolofi (Albino)
6x Cynotilapia afra
3x Synodontis petricola catfish
This is for a 55g. Would this be too overstocked or something that could work? Should I cut the afra and soco down to 6 each. Should I cut the catfish out completely?
What Cyno. species are you talking about? "Afra" doesn't tell me a whole lot. The Cyno's vary in size - from mature at 4" to 6"+.
I've kept three types of Cyno's, various mbuna, and a few peacocks - plus some Syn. petricola in a 55 without problems. The fish, however, where 3" and under - nothing was mature. I also did waterchanges every 2 - 3 days to keep the water "fresh".
With that first list, I would maybe worry about the Ps. socolofi getting a bit too big (or too aggressive) for that crowd of fish. Some people have problems with keeping Ps. demasoni and Cynotilapia species - I don't.
As for the second arrangement - I'm not experienced with Melanochromis but I think that list may have too many aggressors in there. From my past experience - Ps. socolofi can get pretty rambunctious.