Many species of fish are suitable for aquaculture and aquaponics. Species which have been researched and successfully reared in cages in the southeastern region of the U.S. include:catfish, trout, tilapia, striped bass, red drum, bluegill sunfish,crappie, and carp. As this interest continues to increase,more research into cage culture techniques and alternate species will no doubt occur. We have a PDF you can look at about freshwater species.
Raising Tilapia - Easier Than You'd Think If you had Tilapia and chickens, goats (and maybe a cow or two) for milking, a garden and some fruit and nut trees... these are some of the things my dream home would have. :)