First post here to this great informative forum. My Sulcata is about 4 inches or so and kept indoors. I have him in a tank for now until I can build a proper table. The tank is placed in a nook with three large windows that allow plenty of sunshine in. I have been monitoring the temp and it is between 60 at night and 80 in the day time. This is the lowest the temps will get, being I live in southern ca. Do I still need to provide additional lighting? How about in the summer, when temps will get much warmer?