What's the minumim tank size for a Gar? My nephew wants that's for sale down the street from us. He has a 55 gallon, I keep telling him it's too small but he's obsessed with this thing, been trying to steer him towards an 8" Black Midas instead. Can't get him to get this nice Alligator Gar out of his head though!? I'm a Cichlid man, I know nothing about these things, they do look cool though.