What i have been doing for my 4.5 foot wild black racer is i had a 100 watt heat lamp on his 20 gallon cage for about 4-5 hours a day, turning it off whenever i felt was a good time. And at night i have nothing on. I was just wondering on some specifics what i should do during the day and night. What watt bulb? How long to have it on? What about night time, same thing?