One thing to consider when you are feeding corals is the food that you are actually putting into the tank. Excess nutrients in the tank can and will cause issues like algae for one thing. I do not feed my corals at all, well, maybe once a month i feed some mysis to my duncan but thats it. I have had stupendous growth out of most of my corals, the duncan was only 1 head and is now up to like 15 or more, in less than a year.
The more gunk and stuff you add to the tank the more water changes and maintenance you will have to do.
There are some corals like a sun coral that NEEDS to be fed since it is not photosynthetic but those corals are kinda far and few inbetween.
My advice is to keep it simple, easier and works just fine in my experience.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.