I have a 29 gal biocube, recently bought a very smalll clown - 1" in length. It's the only fish in the tank. I feed the reef tank misis shrimp twice a week. The clown just ignores the feedings. Also doesn't leave the back upper corners. Fish has been in the tank about 3 days. Will he/she ever venture out into the reef rock? Perhaps I'm just impatient. Any good info about behavior would be appreciated. Thanks.