So far it's been easy to add rats to my "teenage" doe colony, but I wanted to add 2 more girls to finish it off and it's been SO difficult. I am slowly doing it...having them play every day for 25 minutes together. It's just not going well though. How do I get them to get along? The 2 girls that I'm trying to get in are MUCH smaller/younger. Should I just let them get a little bigger and then try again? I don't know how to approach this. Please help me. I really need them to be able to live with the teenage gals.