Not a photsynthetic coral. Thes corals prefer darker areas of your tank. Cyclops is a good choice for feeding. The dome method is referring to placing a cup over the coral and squirting a bit of food under it. The bets way I've found was to add a bit of food to the tank in the evening when the lights go out. When I see the coral polyp I target feed them with a squirt from the turkey baster.