I feed my whole tank. I know the Zoas filter fish waste from the water. I feed my reef a variety: Phyto, Oyster eggs, Cyclopeeze, and even reef chili.
I sort of look at feeding my corals as feeding all the critters, pods, crabs, shrimp, as they all eat and work together. They need each other.
Sun- Phyto and Cyclo
Tues-Phyto and Reef Chili
Thurs-Oyster eggs and Cyclo
Sat (after water change) Oyster eggs and Phyto
Seems to work pretty well for me