You might get more of a response tailored to your needs if you could tell us a bit about your tank. Fish no fish SPS, LPS, Non Photsynthetic ect...
Light is really all they need.
Depending on they type is what you can feed. Fish poo is a natural food.
I have a mixed reef with fish. Every Sunday evening the corals get Phytofeast, Oysterfeast, Reef Roids. Live baby brine, Frozen rotifers, and calanus. Mixed with 500 ml tank water. Everything is squirted with a turkey baster then the rest is dumped in. By morning the water is clear again. I now have sponges appearing that I did not buy. White, purple and pink ones.