Bornemans mix, cyclopeeze, brine, mysis, krill, silversides, marine plankton, flake, phyto, and a bunch of other stuff.
I think a varied diet is helpful. I also think it's necessary for tanks with a large mix of fish.
FWIW my work nano doesn't get quite as big a mix of foods, it's mainly cyclopeeze, mysis, and a bit of phyto.
B