We saw these pygmy chameleons at thatpetplace(.com). They are like a Jackson's chameleon, only about 3 inches long, with a stubby tail. We have a 46G corner tank in mind, and we wondered about a heater. Is it needed? Would a light be sufficient? (Our house it cool at night) Where do you put it? (planning on stones/gravel under peat/sphagnum for substrate, with some tropical plants.)