I like this thread, and the other one, and the video showing the Copperband chowing on the banana slice... actually, that one made my night!
This (and lateral line / hole in the head disease themselves) illustrates the incompleteness of any given food... they are all incomplete, because most fish in the wild eat a variety of foods, rather than any single kind. Even the fishes that eat mainly SPS polyps in the wild don't eat only from one single head of coral, they eat from a variety of heads which will vary in nutritional value. This nutritional profile provides them with a little here, a little there, making up one complete diet.
So, everyone please feed your fish a wide variety of foods, whether it be flake, frozen, pellet, live, whatever. They'll thank you by having long healthy lives, and who knows even by breeding
Thanks for posting this, it made me happy.