So how cold is too cold to be leaving my tort outside at night? how cold can it drop to and be able to leave her outside? and how can i heat her plastic doghouse so she has a warm area to go?
I always try to bring my Turkish greeks, T.g.ibera, in when it's going to go below 60F. They can get as low as 50F, but I don't see the need to let them get that low.
A ceramic heat emitter or infra-red light would heat the plastic doghouse. Just make sure she can't get out if it's going to be very cold at night.