Very nice Coral Keeper. If you have problems, take a 2 liter bottle, and cut off the bottom half, and put it over your sun coral. That way the food will sink down on top of it, and its a real pain for snails and such to get to it.
My biggest problem is the effing nassarius snails. They will almost eat a head off my sun to get the food. Mine get relocated at least 5 times each during feeding to other parts of the tank. I usually take some brine and inject it not very deep under the surface of the sand, and the snails find it and fight over it. Buys me time.