Thanks guys, will be heating them over winter, probably just a 25 watt, just to take the edge off. The male is 3 years and the female is 4 years.
I absolutely love them to death, I could stare at them for hours.
I fed them for the first time last night. The male wasn't interested (he is a little highly strung and will take longer to settle I think), but the female absolutely scoffed herself, could not believe how many crix she ate!!