Things that work for us are, try aspen bedding. For some reason sometimes this stimulates them to eat. Also I don't know how big you dum is, but if it's just a baby I would take it out of the 40 gallon for awhile. Sometimes all that space scares them into not eating because they don't feel secure even though they have hides. All of our babies stay in shoebox rubbermaids until they are well established, then we gradually move them up in cage size. Some dumerils seem to have a taste for mice and are very hard to get on rats, we have a 4 year old who will only eat mice. It's a pain, but we still love her. So, we tell all of our customers to get them on rats as soon as possible to avoid this type of problem. Also I don't know how often you have been trying to feed him. Sometimes with the constent offering of food, they become timid. If I were you, I would put him in a smaller cage with aspen bedding, leave him alone for 2 weeks in a very low traffic area, give him a nice tight hide box, then try a live mouse. Dumerils can be tricky little guys if they want too. We had someone buy a pair, he took them home, they wouldn't eat for him for months, we took them back, they ate the next week. Go figure....LOL. They just wanted to come home. Anyway, hope this helps some. Good luck
Danni
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