Hey guys, so I'm pretty sure I don't need any incadescent heating for my green tree frog. I've got a flourescent UVB light and according to my thermometers the temperature ranges from 70-73 during the day, and can get down to 68 degrees or so at night. These numbers are in the range for what green treen frogs need, but is it sufficient enough? Would it be preferable to try to increase the heating to like 77 degrees,rather than to keep the temperaure at 72? If so, than would a low watt incadescent bulb be enough to bring the heat up just a few more notches? And is 15 watts the lowest an incadescent will go to? I can't seem to find lower wattage bulbs.

Thanks, guys