I just got two new boys in addition to my three older ones. My older guys are seven months and nine months but the younger guys aren't over four months. I'm not sure of their exact ages but one isn't even a month old yet i'm pretty sure and the other one I'm almost certain is younger than three months. I'm still waiting for their birthdays so I don't know the exact age yet. I was planning on getting a 20lb bag of obox before I got them and was just wondering if it would be okay to feed it to them as well since they all live in the same cage and eat the same food now (which is petsmart brand mouse and rat food that I was planning to work them off of.) Would that be alright for them or should I just wait until they both reach four months?