www.arbreptiles.com/boids/dums.shtml
www.repticzonecom/caresheets/86.html

Also try a google search. As usual there is some conflicting info, generally with humidity & temps. Dums come from the drier areas of southern Madagascar. Humidity levels over 50% may cause some respiritory issues (personal experience).
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2.5 dumerils boas, 1.1 albino burmese python, 0.2 bearded dragons, 1.0 german giant bearded dragon & 0.0.1 sulcata tortoise