I've got a 90 and a 220 ..
In my 90: all African Cichlids
In my 220: 3 Red Oscars, 2 Jack Dempseys, 1 Clown Knife (24 inches long now), 1 fresh water Sting Ray (about 1 foot in diameter now.. just a baby), 4 Sevrums, 3 fairly large Angles, 6 Silver Dollars.
I feed my Oscars and Clown Knife gold fish and in the summer my oscars get fresh craw fish from the river lol.. love watching them eat those..
For those that don't know what a Clown Knife looks like..