[bchgirl]

You need to determine if what you are seeing is truly aggression. The two bichons already consider themselves a pack. You are introducing an outsider. There is a peeking order that needs to be established. They work this out. Ramsey is the oldest at my house...and sometimes she is not interested in Reggie's puppyness. She lets him know in the only way she knows how...it isn't aggressive...but she does make growly noises and sometimes mouths him. It sounds worse than it is. I have seen actual fights between she and Reese...there is no mistaking the difference. The bichons are older and sometimes it's harder to introduce a puppy to an older dog. You need to re-assure the bichons they have not been replaced nor their status in the family lowered. With Ramsey....she was first. She got the first treat, she was greeted first, she was allowed out first, she was assured her status hadn't decreased. Our attention was focused more on her than either of the other two that came after. Do understand dogs at play...play rough. Females are sometimes difficult in the same household too.

I would introduce the bichons individually under close supervision...without muzzles to one yorkie at a time.

We introduced Reggie to Ramsey and Reese...he was happy to see them...they were not so happy to see HIM.

To be real honest...it bothers me that you are considering getting rid of the bichons...who have been in your home for 7 years instead of the puppies.