I've had a rather friendly WC garter for over and hear now, and he has been doing very well. I am not sure of the sex and this is one of my concerns. I would like to put him in the bigger tank which is much much bigger and currently house my large female garter and her daughter(?). They have also done very well, love the size of the tank and also get along great together. I want to bring the WC one which I believe is clear of any disease of infection and would benefit from the space as he is in a much smaller tank (a 10 gallon) than I would like to keep him in. Any words of wisdom as to if I should introduce them, how I could figure out the sexes of my snakes better, and if I could still house them together even if they are of the opposite sex? They aren't being Brumated or anything but I heard they can sometimes still have offspring even if not Brumated. I'm not really looking to take care of another litter of snakes so I'd like to minimize the chances of pregnancy.