We got our seconde B when the first one was twoo years old, so we know for sure he was fully trained and a bit mature in his mind.
When The little one came, the older one instantly took care of him and clean his ears, licked his fur etc etc.
I have to say the training was a bit more difficult then having one B. because they learned eachother their trics and behavior.
But with much attention and training we didn't have trouble at all..
I think it's really important to show your older one (the one you've got longer) that he's as important as the cute puppy. Not too much, they're so smart and then they will be maybe too dominant.
When youre in charge and have the strings in your hands, there shoulden't be to much trouble I tink..
We've two males, and Buana is almost three, Chafuko today became one and they never have a fight.. They just know who's the boss. (at our home, Kas and I share the alpha place, Spaiky the cat has his second place, then Buana, and Chafuko is last… Now hailey is with us, she's got third place, above Buana.
When she's got in, Buana and Chafuko immediatly shown her: okay you're above us.. we don't mind.
Hailey eats first, Buana next and Chafuko after Buana
I don't know if it's matter that Buana and Chafuko has the same dad, I don't think so