Bobby is right. Probably my favorite tank ever was also my 10 gallon contest tank. I did ricordea only -- I probably had 30+ ricordeas in there, with a variety of colors. I had one or two small fish. I think a clown goby and something else. I don't really remember. I got my ricordeas at coralmorphologic.com -- their mixed grab bags are out of this world, in case you are interested!