Since I am soon to be getting a 75 gallon tank, and since I live in Florida, I thought it would be cool to do a Florida Everglades/swampland environment. I did some research on species that are found in the everglades (the link is http://www.tiem.utk.edu/~sylv/HTML/Work/Everglades/specieslist.html), and found some interesting things, like that Oscars, although are very rare there, occur wildly in the everglades. My question is, would it be overstock/death wish to have an Oscar, Warmouth, and some other kind of sunfish/cichlid in the same tank? If it is legit, then what are some suggestions for some filler fish besides the Oscar and the Warmouth. Also, filteration, heating, substrate, feeding, and other ideas are very welcome.