I sorry your going through this.. Especially fearing your little girl will get bit
I went through this with our bigger dog and to be honest he needed ALOT of guidance and training. It wasn't easy or overnight either, I hope some of this helps you. I got alot of advice from friends and trainers. We used to pretty much allow him to do anything he wanted, and that was our mistake because we let him think he was in charge. We had to change everything we ever did. We had to stop letting him on furniture, make him work for his food (like sit down and wait for my command), I took him on daily walks and made him walk behind me so he knew I was "pack leader". Also whenever he wanted attention we would ignore him and when he gave up and went away we would call him back over and give him attention, becuase pack leader decides when they want to give attention not the followers. Just little things like this lets the dog think that they are in charge and to me it sounds like both your little girls are fighting for that number one spot because one hasn't been established.
Do you walk them? I know for me that helped ALOT!! Just being able to burn that energy off he was so much more well behaved in the house.
I hope this helps (if this is at all the cause for all your troubles) and maybe solves some of your problems..
Best of luck
__________________ Jess  Mitzy |