best to give your critters (fish/corals) variety.
I would go to your grocery store, at the seafood counter and just get one piece of each of the different raw seafood they have then chop it up into bits and feed the tank. your fish and corals are not going to be as healthy as possible without feeding them a variety. I would also add some cyclops to the tank for the planktonic feeders.
Stuff to buy at grocery store: raw shrimp, fish, swordfish, tilapia, octopus, scallops, lobster, shark etc. whatever they have!
Good Luck!
Jess