Basking bulbs are trial and error --- you want a bright white bulb no daytime bulbs like a Exo Terra one they have a coating on them that is not good for the eyes - a Exo Terra Intense bulb is a good --Updateeeeee 70 gal repizoo tank is perfect for him i have 3 digital therms am needing to get a dehumidifier any suggestion and habe trouble heating don't want to get to much for the size any suggestion