as long as you can provide some heat and they can use it or not is all that matters in where you put them, I wouldn't want to put them in a damp basement but if it's dry and has good ventilation and light then it would be fine. That's another thing to consider is they have adequate light and are not kept in the dark.It fluctuates a lot. Yesterday was 80s and today's 60s night is cooler. Their heat can move out with them. Or would the basement work? I'll move them tomorrow since I need to work in an hour