I just want to chime in on the stocking, and say that I love community tanks, especially for planting possibilities. It's not impossible with 88-gal size African cichlids, but it's hard to imagine it working out with the common plant species I can think of. With smaller South Americans it is definitely plantable to full effect (which I would recommend doing at least some planting of stem plants - pretty easy, stick 'em in and put some chemical once a week after your water change - with those lights). But larger South American cichlids also impede planting.
That said, African cichlids of the size you could keep display incredible color and breeding display. I would suggest you really check out Mbuna and see if it's something you would want. They might be the most bang-per tank as far as color and behavior.That said, I would try to downgrade the lighting for them.
But the stock is the important part
If you go with a community tank, I would check out Swordtails,
The Swordtail Fish. Those actually might work with the t5 lights, if you can get the kind of algae they like to eat. Then you wouldn't really have to plant. But these are fish that keep a harem, and reproduce readily.
Or with smaller fish, I would check out: silver hatchet fish, celestial pearl danios (or Danio margaritatu), tetras of all kinds (some are quite colorful, some display interesting behavior, but not very interesting breeders), cory cats, loaches (such as Yoyo loaches, and kuhli loaches), and small-medium plecos. Those are just some ones I personally like.
I also will mention barbs. Some are small (like Tiger Barbs) but display very active, school yard-punkish behavior. Others (like gold barbs) are small but peaceful (in general). Dennison's Barbs are cool and pretty, but expensive. All of them are active, almost exclusively schoolers, and many are gorgeous - checkered barbs, 5 banded barbs, and Odessa Barbs (so colorful!) especially.
Anyways, I hope this gave you some ideas
