I think L_C knows about the tank size issue... Ive been yelling at him about it for like a year! Im a little uspet though... I seriously dont see you setting up a 180-240 for him in the near future man. Dovii actually grow FASTER after 12" in my experience, so your 125 will last him a good 4-5 months. Which, when you think about it, is really not good.
And ON topic, feeding your fish feeders is okay from time to time, but i dont think it really affects the fish's health/color in a positive way. If you really want it to be healthy for him, spend some dough on cheap tropical fish like some sort of warm-water tetra, baby convict, etc.