A Midas / Red Devil has pretty powerful jaws. Mine is 10" and he draws blood when he bites. My husband used to play and let him and bite his fingers when he was little. Now he's big and it hurts. He knows where the meat is tender on the hand and fingers and that's what he goes for. :lol: He doesn't bite me I wont let him.
well, first of all, JD are not near as aggressive as a Red Devil, so they probably arent attacking you with the same intention as a Red Devil, and secondly, the mouth shape plays a big role in this as well.
I am guessing most JD's don't really need too powerful of jaws. I never saw mine ever bite food. He would always just suck in food whole. I would say that in the wild most of the things that they eat would for the most part fit inside their mouths. My JD's mouth when he would open wide was huge!
I was highly impressed that my Trimacs, from 3.5" (the size I got them) until now, chew their pellets as they eat them in mass quantity. Most fish get a mouthful and then go grind them up... my Trimacs suck several pellets in their mouths, chew once or twice (crushing every pellet) and swallow. This allows them to far out eat any of the other fish in the tank... and they have in turn out grown every other fish in the tankâ€¦