It varies from individual to individual. Most fight.
Males will usually get along if they grew up together. If there's a female in the mix, its typical for them to fight.
However, I've had 3 breeding males in a tub with a female and they didn't fight. I usually put extra weaned/small males into my breeder male tub as grow outs. I miss sexed one and she eventually went into heat. All of the 3 breeder males took turns mating with her. I was really shocked. None of them fought at all.... This was definitely not a normal outcome.
I wouldn't really recommend putting multiple mature males together with a mature female.
Sent from my DROID RAZR using Tapatalk 2