We introduced our 9 week old puppy to our two dogs yesterday and they really don’t like him, he is very very forward and when he bounds up to them they growl very aggressively, it doesn’t put him off at all though. They are separated at the moment, we have a large house and he has the run of half a room, sectioned off with a playpen barrier, so they can see each other, and the older dogs have the rest of the house as normal. I have been getting him out for short bursts but the other two just growl and leave the room. Just wondering if there’s anything we can do to help, he’s desperate to be accepted by them but they seem scared, they’re such lovely dogs but the growling is concerning me that one it doesn’t put him off and two it may escalate into an attack. They’re all the same breed cockapoos. Any tips? Should I keep them separated all the time or should I keep introducing them throughout the day? I don’t want to stress my original doggies out bless them.