I know my anthias's wouldn't be happy with that schedule unfortunately....lol I dont' feed a terrible amount each feeding by the way, just a squirt from the turkey baster I use. I feed generally 3 times a day also. I also dont think a fast day would hurt the fish, I mean afterall bow much can it hurt just skipping one day.
Are you concerned about water parameters with multiple feedings? Like I said, I dont overfeed 3 times a day, but feed something so everyone gets a little. But I also have 3 bigger tangs in the tank so I guess it's a bit different for me.
Wish I could be more helpful, other than knowing they need multiple feedings I'm out of answers. rofl