As for my recommendation I don't see anything wrong with the alligator. To me they are cool but not the most interesting fish for many of the reasons mentioned, unless you could get a platinum. For something more space appropriate indoors would be the longnose gar or the Florida gar. I think the Florida will handle the temp as they go pretty far north into central Georgia. The longnose will definitely handle the temp. Personally, I like the pattern on the Florida better. What every you get, put a bowfin with it. They are fun to feed, and I like the dorsal action when they swim. If you can find a gold gar they are cool too.
If the question was about legality in Florida, then I would keep anything but the alligator gar.
not my pic
If the question was about legality in Florida, then I would keep anything but the alligator gar.
