I do use UV lights with my bearded dragons, which are large diurnal reptiles. I don't use UVB for my nocturnal geckos (or my nocturnal frogs) because the geckos, at least, are in their hides all day and would't benefit from the lights. Also, since all the geckos are doing well, not using UBV keeps me from having to replace many UBV lights every 6 months (I have about 30 cages in total). I would never do something harmful to my geckos (and frogs) just because I'm trying to save money, but my experiences with the day geckos over the course of a number of years convinces me that this system is working. While I would agree that it's hard to compare amphibians and diurnal reptiles, it doesn't seem to me to be that off base to compare nocturnal amphibians and nocturnal reptiles.


Aliza