As fun as it is to keep them together, it really is bad for the female to stay with the male. They breed freaking nonstop. I had a friend go from two to over fourty in just a couple months because he never split his "hamster city" so everyone bred with everyone.

Twinkle stands a good chance of accepting one of his sons as a cagemate if you'd like to give him one, though. Bitsy will also probably do well with one of her daughters, too. Heck, I know of a couple people that kept dad with all sons and mom with all daughters. Just remember the rule of thumb is that if squabbles lead to blood, they have to be separated.

The majority of the Campbell's in Petsmarts here are umbrous too. From what most of us can find out, just about all Petsmarts and Petcos in the US get their hamsters from the same mill, located in California. I'm assuming a large amount of the mill's breeding stock has or carries umbrous. If your pair came from different stores, then they're probably not siblings and only distantly related, which means your pups have a better shot at being good and healthy.

So what are you going to do with The Minions? Rehome, keep, feed, combo?