SammyP,
Welcome to my thread and wish this thread helps you on tips and tricks about SC. Yea don't worry about placing your SC direct to light or not. Most Sun Corals, like mine open up during lighting period off. For placing SC? It's best in the middle of the tank or at the botton. I would recommend right on the top because direct exposer to light can harm tissues. THATS WHAT I HEARD. Yes, you should place where SC can get in contact with the flow for feeding and sensing food. It likes that.
dendro982,
I agreed with you on human frozen food from super markets. They have a lot of salt and preservatives that may harm corals. I THINK you might want to try Organic frozen seafood from Trader Joes or whole food. I'm sure those can be okay. Right? IT'S ORGANIC!