One of my teachers got a BD that’s ok with me apart from it is an adult almost 2feet long and is in a 3feet corner vivarium. The Substrate is big chunks of orchid bark that he is eating by accident. Besides that there is nothing in the cage. He is kept warm enough but he doesn’t have the calcium powder or a UV light. I told him about MBD but he looked at me like I was stupid and said "what is he next to" I said "the window" he said "so it’s ok because he will get the UV rays." But if I am right (but tell me if I am wrong) glass blokes out UV rays and only let in heat. And it’s in the science room near the gas taps where we do stuff with gas and fire. And everyone else in my class has a go at me for telling the teacher that he has to change franks (the BD) home and get a UV light. And every weekend he is left a school so his water is not changed.