I've had very little fights with my dogs. Raustyk can be dog agressive, especially towards females. Luckily I found out just through her behavior & small scraps, nothing major. So I do my best to avoid any other dogs when she is with me. I guess I've been doing a good job at it.
I can tell a fight will happen before it happens, with body posture, vocal noises, etc.., a simple "knock it off" does the trick for me... so far... knock on wood.

I think you handled it well. And Tamara had some mighty useful information once again.

Not to be rude what so ever, but I've always wondered how you could have three females in the same house with no fights yet. You must be doing a good job at raising them.