I just bought a 20 gal today and I am pondering in what to put in it. I am curious in what type of catfish you guys would recommend. I am currently debating on having the tank as either a US native tank, nice community tank of tetras or rainbows, breeding tank for a pair of dwarf cichlids, or some interesting oddball such as a catfish that could be a wet pet. Any advice would be greatly appreciated. 