Quote Originally Posted by Sandy_01 View Post
Adding the new mice to the group turned out to be a disaster. Last night the group broke down and everybody was fighting. The fights just kept escalating so I separated the two new females back to their original tub. None were seriously injured as I was watching closely. All the mice have settled back down to their original calm mousy activities. A lesson learned.
did you change bedding when you added those 2 new girls?