You don't need to feed anything special. Just good clean water and lots of light and flow. Only time to implement feeding is if you start bordering on water that is too clean and pale corals. You will know if you need to feed.
I personally have been experimenting with Zeovit supplements and reef roids, but my nutrients run very low from carbon dosing. So I export more just so I can dump more crap in the water. Kinda sounds back asswards, but that's the way I roll, LOL!