I am researching how to care for pet tortoises. If I got one I would probably get a redfoot or a hermanns tortoise. When it gets under 50 degrees at night do the tortoises need extra heat, or do they need extra heat when it gets under 60? Is it safe to provide heat when it's so cold? I was wondering if I could take the tortoises inside each night and put them in a small heated enclosure inside, and take them back outside in the morning. Also, how cold is too cold for redfoot tortoises at daytime?