Often when I feed my Cichlids frozen krill for example, there is quite a bit that makes it to the bottom. This is one reason why I love having a cat around to clean up all the mess. The funny part to me is that they will eat and eat and seem to have no limit to their appetite. Seems to be the only fish I've noticed where the belly just gets HUGE. It will stay that way for a couple of days. Don't experience this often, but do chuckle when it does occur.