I have decided to call the new male Spencer. Lastnight I put Katja and Spencer together to see what would happen. First I put Katja on the outside of the cage to make sure they would not be violent, then after some time I put her inside. Spencer seemed to show partial interest in her at first and then more as time passed. They seem to be doing good together so far. I am hoping that this new male will become a decent breeder and will give me a good genetic base for a large family along with Kaz. Kaz has not liked the presence of Spencer. I put Kaz on the outside of the cage and he went nuts running like lightning all over trying to get to Spencer. I dont actually know if Kaz would have attacked Spencer, but I sure do know that he was exercising his group dominance.