I am looking for UVB bulbs for my lovelies, but I'm a bit unsure.
They each have their own standard, 40 gallon tank (17 inches from floor to lid and about 35 or 36 inches wide). Should I get an 18-inch, 15 watt bulb...or a 22-inch, 24 watt bulb?
(I'm buying Zoo Med ReptiSun 10.0 T5's, buy the...