Welcome to R2R Randy. Our corals ate pretty much what the fish ate. The staple was reef nutrition refrigerated foods and LRS reef frenzy. Also would mix up reef roids and oyster feast to make a nice slurry. The larger LPS ate mysis feast, roe, bits of frozen, etc.
Most, if not all the corals you keep are photosynthesisers & this is their main feeding mechanism, so some no3 & po4 are important.
They feed on organics in the water, so this means tiny bits of detritus, fish food, fish poop is a favourite.
I also use reef roids, phytoplankton, Aquaforest reef energy, vitality & aminos ocassionally.