What sort of bulb did you end up getting?Thanks Satay, but I don't have a thermostat. I have got a lamp and it is sitting on 35 nicely. Here is the set up so far. ( bedding yet to go in ). Got my elavated feeder ( made out of a yogurt pot ) and a lid with marbles in it for the water. Do you find water becoming warm a problem or should regular changes be enough? I could freeze a couple of marble to keep the water cool?