Yeah, the questions about the usefulness UVB are mostly related to tree frogs that are largely nocturnal. Toads are much bolder and often hang around in daylight.

For some reason it seems a lot of pet owners have noticed wild frogs are more affected by parasites in captivity. Do you clean out and refill the dirt after a toad dies? Because the parasites might be building up in the tank environment. Where do you get your dirt?