occellaris black ice, as they are awesome!
Mine host just about anything. They are currently in a sebae and from time to time they switch to my duncans. They sleep in the sebae. Here is a video of what they look like. Don't take too large clownfish because it is a small aquarium that you have.
http://www.youtube.com/watch?feature...&v=A9HIwKpRjio