As needmorecowbell mentioned, briefly, yes... target feed them. They want meaty foods like chopped mysis shrimp, clams, etc. One method is to stop the pumps/powerheads in your tank to reduce the flow and suck up some of the chopped up food in a turkey baster. Then just "baste" the coral with the food. Wait maybe five minutes or so, then turn back on the pumps. Make sure you do this when the polyp's tentacles are extended.
Another way of doing it, which works well if you have greedy shrimp or crabs that like to steal the food away from the coral, is to cut the bottom 3/4 or so off a 1 liter pop bottle. Use the top part of the bottle and put it over the coral, with the screw top part at the top. Then squirt your food into the bottle. Your greedy shrimp/crabs can't get to the food, and your coral can bath in food until you decide it's had enough and remove the bottle.