Hi i have cham he's about 5monthsnold been doing great but now the winter is setting in the viv is getting cold at night. He is up in my attic and its red hot normally but in winter its getting really cold dropping to 11/10oC (50f)at night, but it will get colder, i was wondering what set ups ppl have? And what watt's. My viv is exo terra glass 45x45x60cm and mesh top. Can i put a ceramic on mesh? What watt do i need will a 25w see him good over night or need a 40?60? W??? Probly gonna get a thermostat aswell anyway but they dont go below 19oc this is pritty hot no? Read in wild the temp drops to 10/12oc and is health for a good drop from day to night.. Also seen these heat wires??? Any good can u put them in viv or tok hout to touch?