I'm doing some trading for a breeding pair of bull snakes & need a quick run down on them. I know there found around mexico & california so what should the temperature & humidity be? The guy said he's had them for 5 years & they have successfully bred every year & the female has double clutched the last 4 years. I know they can be mean & nippy at first but usually its just a bluff. Any other info on them would be great. I plan on breeding them so any info or advice on that would also be greatly appreciated. Thanks in advance.