I feed my fish a well balance diet of foods, including a lot of greens for my Tangs, Rabbitfish and Angels. For my large fish, Eels, Triggers and Groupers, they also get a more meatier diet too. I also feed a lot as the fish are pretty large.
I feed a number of things starting with:
Flake & Pellets:
OSI Spirulina Flake
Spectrum Thera A Pellets
Nori Sheets
Frozen:
Formula I & II
Silver Sides
Shrimp
Fish(Grouper/Salmon)
Clam
I usually spot feed my corals, so frozen works best.
Corals:
Mysis Shrimp
cyclop-eeze(frozen & pellets)