Oh, and IMO, do NOT continuously drip the food. You are looking to get a decent density in the water column for the corals to feed. If it is too dilute (slow drip) it's hit-or-miss whether the corals can catch enough before it gets filtered away.
I typically feed about 3 times a week. I mostly have LPS and polyps, but I think SPS should be fine on the same type of feeding schedule.