To give you an idea, i have a royal gramma and a percula clown (false). I have bio blend mini-pellets, formula 1 and formula 2 frozen foods, and mysis shrimp. sometimes I'll give them a pinch of omega flake food, but not very often at all.
they LOVE the formula 1&2 cubes.. I used to cut pieces off, but that's a pain, so I thaw a whole cube, give them a pinch, and the rest goes into my 75 gallon freshwater tank.
Former advisor and planted tank geek...life's moved on though.