Hi, I'm going to buy a tortoise this weekend and am worried about the different things that I've read and what's best. If a tortoise comes from a Viv with a heat mat, am I best getting a heat mat or will the overhead light/heat lamp be better, as I've read that heat mats are a no go for tortoises? I'm hoping to get a Horsefield. All I seem to do is worry and ask hundreds of questions...I'm going to change my name to 20 questions!!! Can anyone help me please? thanks