Here's half of my stacked and divided 75 setup. Since this photo, I've taken the dividers out and added crossbracing to them. Still have dividers in one of the 75's for smaller fish and grow outs. Electrical is also a lot cleaner.
This tank is roughly 960 gallons and houses a hodgepodge of fish. The stock and layout of the tank have changed since this photo.
15" Cichla Temensis from Rio Ventuari
15" Cichla Kelberi/Piquiti hybrid from Sao Francisco
8" Cichla piquiti
10-12" Fossorochromis rostratus (tank boss)
10" Amphilophus sagittae
Breeding pair of Paraneetroplus bifasciatus
2 8" Amphilophus lyonsi
3 wild oscars from different collection points
yellow bullhead, longear sunfish, indian sun cat, calico convict, a bunch of misc fancy plecos, including a 20-24" common pleco, salvini cichlid, true parrot cichlid.......i think that's it lol.
Sorry for all the latin names, but it's the best way for me to keep track of and describe what I have.