So I adopted an older rat (masala) to be friends with our two boys, moose and scout. At first moose cuddled into masala almost immediately, scout and masala got along okay, mainly because scout doesn't care about being any kind of aggressive with other rats. Then the next few days have been impossible. They keep fighting, mainly because moose is uncomfortable with the older rat being on top. Moose was always very shy and NEVER into being alpha before this, now he's acting weird attacking masala at any chance. I dont know how to introduce them to where they wont be aggressive. Will someone PLEASE give me advice? If I cant make it work between them I'll have to find a new home for masala.