They are getting some UVB from the canopy lights. There is research that suggests frogs need more UVB than earlier thought. However, the 3 consecutive papers on this research published in Environmental Science and Technology, a journal of the American Chemical Society, the worlds largest scientific society, determined that UVB is the cause of frog malformations. In the study it was determined that with an incremental increase in UVB there was a corresponding decrease in egg development and tadpole survival and an increase in the presence of malformations. These adverse effects were appearing at 63.5% of the intensity of UVB in natural sunlight! Until something convinces me otherwise and a dosage is determined I am not going to use a UVB bulb with my frogs.






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