Huh. So I just read a post on this messagboard that said if you have a screen lid, then you should cover 2/3rds of it with glass to prevent humidity from escaping. Is that true? I have a screen lid, but it's small, as the tops of the zoo med naturalistic terrariums are small. And I have a good portion already covered with a hood: http://www.petsmart.com/product/inde...ductId=3756450

I use that hood to hold a bulb for UVB lighting on my American Green Tree frog, and it takes up a good portion of space on my screen lid. I know many people, including John Clare say that frogs don't need any UVB lighting, but I have also read several reports from people saying that it is beneficial to frogs, provides calcium for their bones, and can't hurt. I want what is best for my frog, so I am using UVB lighting. I currently am not using any heating, as the house temperature is good for now. However, when it gets colder I may have to put another hood on the lid for heating. Then the whole screen lid will be covered with two hoods for UVB light and heat. I guess that would trap the humidity inside the cage, but then the whole lid would be covered- Wouldn't that block out my frog's ventilation and kill it? If I need extra heat than do I just have to take away the UVB bulb and put in a heat bulb, in order to only use one hood on the lid? And what about putting glass on the lid-is that true or what? I've been all panicky ever since I got this frog. Frogs are complicated.