I have 2 full brothers but from different litters and they fight all the time. Pochi is the older one but the calm and a lover not a fighter attitude, while Choppi is the hyper (I swear he has ADD/ADHD) one and picks fights with Pochi if he gets too close to his face or 'sleeping space' at first I use to intervene but now I ignore them since they don't ever hurt each other. Funny thing is Choppi looks for Pochi to lay next to when they sleep yet he'll pick a fight with him if he thinks Pochi is trying to "dominate" him by getting too close to his head.
I figure they are just like human sibilings, they fight have their differences yet in the end they love one another.
As long as neither of them get physically hurt, I'd say stay out of it and let them resolve their differences just as you would to any sibiling fight |