I have a 55 gallon tank and I would like some suggestions for fish that will not outgrow the tank. I don't want a community tank, just 1 or 2 cichlids that will do well in the tank. I had a tiger oscar in a different tank when I was younger and he was awesome. I know that a 55 is too small for an oscar so I won't be getting one, I would like something like it though. Thanks