Hey all, so I'm new to tarantula keeping and to the site lol. So I've been looking at info around tarantula keeping. I've heard some people don't provide an external heat source and just rely on room temperature. My house is generally not that cold. But since I live in the UK, it can get pretty cold sometimes. Should I provide a heat mat? I do keep dubia roaches at room temps and they do fine. Any advice?