I initially had two white's tree frogs both a little longer than 3/4" and on July 22nd 2018 I found one of them dead in their enclosure. The frogs both seemed healthy and were eating the night before. I ordered them from LLLreptile and recieved them on July 17th, 2018. I had been feeding them each 3-4 fruit flies (drosophila hydei) once every day. The enclosure is sterilite 7.5 gallon modular stacker that I modified by drilling many holes in the lid. I also used hot glue to secure a few plastic plants in for climbing/hiding. I have a small container that is about as deep as the frog is tall for water that is distilled water treated with dechlorinator. I mist the enclosure 2 a day with dechlorinated distilled water as well. I am using paper towels for substrate currently. I don't know why one of the frogs died and I am concerned for my other frog. What am I doing wrong? should I be feeding more flies or is something else wrong? Any help would be appreciated. Thank you.