Hi, I was wondering what substrate to use for chucks, also, where do we find GOOD care sheets, and can we keep 2 in the same tank?? a boy and a girl?? We already have a male.( our tank is 36"long, 13"tall, and 12"wide. We are using a blue,full spectrum bulb at one end of the tank. Also, will they get very tame, and like to be held eventually??