First I wanted to say how sorry I am that you're having this problem with your two babies.
Our Lindi Lou has been aggressive at times with our other girls but we have learned to control most of these episodes from occurring. We call it her "Chucky" outbursts! LOL
My husband named it that and it kind of stuck.
At first I was separating Lindi from the other girls for time outs but this didn't seem to help at all. After watching Cesar on the Dog Whisperer he doesn't recommend separating them. Now if Lindi has an outburst I put her on her side until she calms down out of the red zone and will leave the girl she attacked beside her like Cesar does. Cesar says if you separate them then foremost in the dog that attacks mind is the aggression towards the other dog they just attacked. If you leave them on their side and bring the other dog beside them until they calm down then the feeling of calmness is foremost in their mind towards the other dog. Also by putting them on their back with the other dog over them it will help them to feel the other dog is dominant over them instead of the other way around which makes sense. We've done this repeatedly with Lindi and it seems to have really helped. She's had the odd outburst but we try to anticipate her body language and can see how she's getting in the "red zone" and redirect her behavior.
Things like when the girls bark at the doorbell and get into a frenzy seem to set Lindi off so I will redirect her behavior as soon as the doorbell rings. If one of the girls yelp for some reason this also sets her off so I have to redirect her behavior again and then she calms down. It is stressful though always having to be on the alert for potential things that will set her off.
I also feed Lindi by herself which seems to have helped. Otherwise she will wolf her food down and try to pounce on the other girl's food too.
I agree with the above poster that you should take a look at Cesar's website to learn some of his methods. I think he's amazing and it's great how he teaches people to read their dog's body language. This has helped me out tremendously.
