I have 8 male rats: 2 new biting rats in one cage that I got from a rat rescueo (who I'm putting through immersion therapy with excellent results so far), 3 in another cage, again from the foster home: two with inner ear-damaged head tilts and their father, and the 3 other rats in another cage. I know they all need time interacting with me and each other outside the cages daily, but 2 of the males hate each other with a passion and I'm afraid of total chaos if I let everyone out in one room at the same time. Of I divide them up with their play time that would require at least three hours a day. Advice please! Thank you in advance!