We had a terrible problem with our spayed female Pebbles fighting with all of our female dogs, both the spayed and unspayed ones. It was so bad we finally found a new home for her. We miss her, but she is actually much happier with her new owners. She is the only pet and they love her to pieces! I still have 4 females now, 2 spayed and 2 not and only occasionly have some disagreements. Good luck with working things out
Martha