Thanks, Don, once again coming to the rescue.

So the 15W or 25W red bulb in the canopy will provide the overnight heat I was wondering about, that's great. And it will not be dangerous if the frog happens to jump up against it?

I guess what I will do is just see what temperatures that red bulb provides in the vivarium throughout the day. If it gets the temp to around 75-80 during the day that should be good, right? And if it can't keep up enough during the day I will pick up a ceramic clamp lamp and a low-wattage red bulb to provide supplemental heat during the day.