You have already gotten a lot of great advice from previous posts. We just went through this for the past 4 months! Here is what it took for us:
1. I
always greeted, fed, touched, and addressed Maddie, the oldest, first.
2. I tried to take them out of the house together as often as possible. This was done for potty breaks and short walks around out property. I found once we were away from Maddie's house
she was more accepting to the newbie.
3. I made sure to keep some traditions just for Maddie. She loves to go in the car and I take her as often as I can on short errands. I always took her alone, and have yet to introduce the new pup to this little tradition, but will one day soon.
4. Funny as it sounds, I recently posted about the breaking moment was taking them to the groomer's together. That was last Thurs. and they have been buddies ever since...go figure
.
5. When Maddie would growl at Cooper I would not scold her. Puppies can be extremely aggravating and I wanted Cooper to respect Maddie. I would occasionally speak to her usually in my Mommy voice and she would stop on her own. They still have moments, but Cooper knows when she has pushed Maddie to far and she leaves her alone.
Good Luck! I know how dis-heartening this can be. Keep me posted and let me know if you need to know anything else, glad to help.
