One male was 3 months and around 300g... The other was around 6 months and about 350g... It is weird... I held back the only all black male I produced to be a breeder and he is in his own tub and I am keeping an eye on him. It sucks because my rat production came to a stand still and I had about a 3 week period where I had no females drop at all and now I have 2 litters on the ground from last week 2 that should drop in the next day or so and then 2 more that should be dropping in about a week. But before I could spread the love to my last 4 tubs my males dropped dead! I had to skip a feeding day this week because of my rat shortage and now I gotta wait for my new male to grow up some more before I put him with some ladies.