[matese]

I have had a pack of 3 females (now all passed) they were all 3 years apart, my girls were very social with sweet dispossessions. When I bought home a 8 week old little girl my 3 year old stayed on high grounds (the sofa) away from pouncing, nipping baby, also, puppies do not smell like dogs, another reason my older gal was afraid of "the thing" lol. 3 years later I bought my 2nd puppy, another 8 week old girl, now I had 2 girls on the sofa afraid of "the thing" lol. They stayed away from the puppy for about 2 months before they would stay on the floor and play with her. I worked full time, the puppy was confined to a private area, she could see the dogs but could not interact with them, I did the same when I bought home my 1st puppy. They became BFF. You can get a puppy, your 2.5 gal will stay away from "it", she will be afraid of the puppy because it will not smell like another dog. Do not force your older girl to make friends with the nippy puppy, let your older one go to the puppy on her time. As rjwalt suggested, always make your older girl first, first to eat, first to get a treat, first to be greeted when you come home, first to be cuddled, this will eliminate jealousy. It can take a couple of months for your older one to accept this pouncing, nipping lil girl but she will accept her and become BFF. A Xpen or Iris pen is good to keep the puppy confined to a safe area and to pad train her, do not leave the puppy and your older girl alone together unsupervised, always be right there watching both of them when they are together until the time comes that the 2 can be trusted alone with each other. I am assuming your older girl is spayed. I am sure other members will chime in with their advise and suggestions, we have many members with multiple yorkies.