Hi, I'm new to the forum and completely new to owning a tortoise! After deliberating for a few months today I picked up my Russian and have got his vivarium all set up. I was advised to have his heat mat on at all times and his basking lamp + uv b lamps on 8 hours in winter and 12-14 in summer. Does this sound reasonable? I wasn't sure where to position his heat map, do it put it on the same side as his basking lamp or keep it nearer the middle under his log were he'd sleep?