Thanks both of you! I appreciate the help. The enclosure does have holes and I will set up a lamp next to the warmer side, and if that doesn't seem to be enough I suppose I can always drill some more little holes. I like the window idea but I've worked with glass and plexiglass before for my major and it's deceptively frustrating stuff to work with! And I would be concerned about sharp spots, etc

I also plan on hanging out with him obviously, and that will certainly give him some extra sunshine during the day.

Thanks again!
Erin