He is already fixed, but he is very male, that is for sure. We got him fixed at 6 months in hopes that he would chill out on the male factors, but the vet said that he is probably who he is going to be hormone wise.
We do have the option to keep them separate and when we do, things are better. It is when we blend them that things get worse. Which means it comes down to training. Looking into the best options for that now.