I have a few coral, pipe, mushroom, whip (I think that is what the 'cattail' looking one on the top is, but correct me if I'm wrong. I just want everything happy. I have clowns, hippo tang, pj cardinal, firefish goby, huma triggerfish, yellow longnose butterfly, fiji puffer, flame angel. All the rock is live as is the sand (half crushed coral/half live sand). I think I have an anemone and some worms that look similar (some go back into rock when touched and some only shrivel their tentacles). Some hermit crabs are in there, somewhere, also.