Gracie is 18 mo. and I just introduced her to Holly, 13 weeks. As long as Gracie gets/does everything first all is peaceful. Gracie is really enjoying her new little sister. She definitely needed a canine playmate and I am glad I waited till Gracie was a bit older. I can tell you that two dogs on a leash is a challenge, as I am sure two dogs potty training, teaching sit and come etc., would be as well. I'm finding Holly is learning lots of things from Gracie, mostly the good things!
