Yes you can use a ceramic. But if the light in the room doesn't brighten up the tank enough to make him think it's day then you should try to get something that gives off light and heat. But not a basking bulb, you want a normal heat bulb. Or you could use a combo of the ceramic and some sort of led bulb or something similar that doesn't give off a lot of heat. And try to give him 12 hours of day and 12 hours of night.