They don't need any light. Lights would only be good for plants. You can simulate day/night for them but it doesn't need to be a uvb bulb.

For some reason my female seemed to get fat when the humidity was less than normal. I feel like she was holding in more water weight to make up for it. I am not sure if that's what it is because that is just something I made from my own observation. I have never looked into it. When I would up the humidity for her, she wouldn't buldge as much out the sides.


But also, take it from me. Your frogs will breed without a rain chamber. My humidity was too high in their viv and I have a large pond area and they bred 3 times. Just the humidity made them breed.