I didn't find the article I was thinking of. I read it about 4 years ago. But I did find one concerning mota husbandry on a site called cichlidae.com, by a gentleman named Vin Kutty. Good article. His fish were typical guapotes, very aggressive during breeding. The male ended up killing the female after being bonded for 2 years.
But on another forum(not going to name any names, the initials are AP's) someone talks about their mota's breeding in large cichlid community tank with midas cichlids and peacock bass with the tigers taking just a corner of the tank and being rather tolerant.
Just goes to re-inforce my belief that aggression is something that must be made on an individual fish by fish basis. You can generalize that all guapotes are aggressive and territorial by nature, but there are varying levels of aggression in certain fish.
And as far as jaw structure is concerned, I don't think motas have more teeth than other guapotes. From pictures, their heads don't look any more muscular than say a jag to me. I know all have pseudo-canines. Dovii look a little toothier to me than jags or motas. In the article by Mr. Kutty stated above, he claims dovii and jags are more piscivorous than red tigers. So if jags and dovii eat more fish, why would motas have stronger jaws? Moving rocks? Puliing up a little algae to eat with their fish? I find your jaw strength claim a little hard to validate. Where's National Geographics Dr. Brady Barr with the bite force pressure tester when we need him?
I don't want to start a war with anybody. I never knocked your poster fish Motag7. Just tried to state the facts according to what I've heard. And I don't care about what fish is badder. I think dovii, motas, and mangs are all beautiful interesting fish. My name is Mang-man because this is the only guapote I've been able to aquire up to this point. Montana is not exactly Mecca when it comes to fish
Just stating my 2 cents and trying to help people when I can. And while I'm stating my 2 cents, let me add in a little, "Let's Go Redwings!!"...Peace