With the help of my LFS guy, who is the best around here (30 years experience in marine aquariums), he help me set up our reef tank. We put a star polyp in my new set up. It was placed near the bottom of the tank, and it opened up right away. It sounds like, from the information in this thread, that the star polyp dosent' like too much light. I would suggest mvoing it lower down. HTH, and let us know how it goes.