i have a 14" body length brute, he has one flat eye, unsure of how old he is but he is definitely a grump. its fun to watch him push my upity little 8" O backwards all the way across the 8x8 pond diagonally. he is fine with all the others only one he ever has to check is the little 8" one. the rest just leave him alone in his dominence. he made my wife about piss herself when she fed them, his mouth is right about the size he could swallow a golf ball. 24" oscar? even total length i would drop another $50 to see next to a pair of rulers.