Quote Originally Posted by Stefan-A View Post
Nitpicking here, but that award probably goes to the European adder. Second place might go to Natrix natrix.
I stand corrected. I meant for North America.

Don't use heat rocks. If you have a way to use a basking bulb safely where the snakes can't get burned, preferably one with UV output, use that. Be sure to pick an appropriate wattage and don't overheat your snake! 80-85 for a few hours a day is plenty. Full spectrum florescent can also do wonders for depression and loss of appetite.

If worse comes to worse, go ahead and use a heat rock. Bottom line is your snake needs heat and natural spectrum lighting. Turn off the heat and light for 10 hours of uninterrupted darkness at night. Use a regular schedule. This can help tremendously.