aggressive female mouse

Question
Hi, I have three female mice, I am sure they are all female, and I have had them for about a month and a half.  One of them has become aggressive, chasing the other two all over the cages we have for them. The two being chased squeak a lot when they get chased and I was wondering what could be causing her to chase the other two. I currently have the chaser in a separate cage because I'm afraid she may hurt the others. Is there anything I can do to prevent them from being hurt and to stop her from chasing them?

Sincerely,
Kelsey

Answer
I found some great sites that can help you with this issue. For now do as you are and keep them separate. If all else fails maybe it is just that she does not like her other room mates. But give it a try :)

http://petlvr.com/blog/2007/10/25/cure-an-aggressive-pet-rat/