| Scott,
I recently ran across some "monofin" gobies. They are a type of dartfish, I stuck three of them in my reef tank at work, they are VERY cool and interact very well with each other. Might want to look into something like these guys, although I think they might be kind of hard to find, shouldn't cost too much though. If you are anything like me you want something more unusual that people don't see everyday.
I also like the swissguard suggestion, one of my favorites.
The candy hogfish I had in my 40 was great as well. An ultimate small reef tank inhabitant IMO. Didn't appear to eat pods, loved meaty foods and didn't touch my inverts. And was very colorful.
Mike |