Most of what I've read says amphilophus labiatus does not reach the size of citrinellum. In pictures its clear to see that midas beats the devil in total weight (much stockier). However in total length is there much of a difference? Asking people that have kept/seen them not researched them as I've most likely researched the same info. Also is there a difference in aggression/behavior? I would assume they are quite similar in this aspect but I've never kept a pure specimen of either so o don't know.