Hello! I am new here. I have a question about my mice's actions. I have five mice. Two are in one cage and three new ones are in a separate cage being quaranteened. The two that are not being quaranteened (Bianca and Phoebe) have been together since I purchased them in September last year. Bianca has been barbering Phoebe for a couple of months now. I have been trying to intervene by disrupting the process, but noticed that Phoebe is now bald at the back of the neck. I would hate to take her out and leave them both alone without each other, and the three new girls have only been quaranteened for a week so I don't want to put anyone in with them. Any suggestions as to what I can do?