Hi to all members, I am new to this site and the marine world. I started my 200lt tank early January '09 and everything was going fine until Monday! My Kenya Tree Coral which I bought 2 months ago shrunk and lying on its side. I have spoken to a few people and some say it might just be sleeping? Is this true and how long can they sleep? It's been 5 days now. I also bought Yellow Sun Polyps 3 weeks ago, they were stunning and open when I bought them, however, since I've put them in my tank they are closed. I feed them with a syringe every 2nd night, but they remain closed. Any suggestions please?