Come on people... Dovii, Dovii? Enough with them, yes they will chase and shred fish with their massive teeth, but do you actually think they can fight? I've had alot of them. Here's the problem, when dovii's fight they try flaring and scaring, if that dont work they open their mouth and leave it open until the other cichlid takes a shot, if the dovii gets lucky he will use his big mouth to shut the other cichlids mouth closed(that wont last long), thats all they do, their mouths are used for swallowing large prey. Not biting and not for shredding. Their lips are thin and when a cichlid with a smaller mouth and thicker lips like a red devil, the devil will bite and hold on the dovii's thin lips, later the dovii gave up his territory and his lip was swollen and turned a whitish red, It got infected and I had to treat it. I honestly think Red Devil's(Midas),and Buttikoferi's are the toughest fighting machine may not be as predatory but Def> a much better fighter.