Okay, this has to be the most common dumerils question asked. Anyway, drop the 20 gallon for the time being. Go buy a 98 cent rubbermaid, sterilite, Iris, whatever brand plastic shoe box. Fold newspaper to fit the bottom for substrate, put in small water bowl, add a piece of paper folded up so the dumerils can easily "hide" if he choses. Since you probably don't have a baby rack system, you'll need a very small piece of heat tape or similar product hooked up to atleast a rheostat, preferably a thermostat. LEAVE THE ANIMAL ALONE, let it settle into this smaller more secure environment, then try to feed him. Generally speaking baby dumerils do not do well in larger cages. Once he is feeding regularly, then I would start considering moving up in cage sizes. Also, 95 degrees...too warm, try 88 as a hot spot. As I told someone in the past, a 20 gallon doesn't offer much floor space for a gradient and the cool end is probably ideal high temps. if the other end is being kept at 95 degrees. Also, go check out Jason's site at Dumerils.com he has a lot of good info there, and anyone new to dumerils should definitely take the time to read it thoroughly. Your not going to find much literature specifically for dumerils boas. Best of luck!
Paul