With more than 2 dogs, you will see more pack behavior. You need to assert that you are the pack leader and not allow any of the dogs to be. Difficult to do and takes time, but you need to correct her every time she gets aggressive in any way. I make a loud noise to distract them and hold the aggressive one down on her back until she calms down, just like an alpha would. Dog Whisperer might have other ideas that work too.
__________________  Lisa loves Harley  and Bella |