For the past few months I have been noticing it has gotten really hard to breathe when handling my BP. My chest and throat tighten up and it can become a rather unpleasent exerience. I am allergic to most, if not all, furry animals in addition to various pollens and other airborne allergens. Although I doubted it, I couldn't help wondering if I was allergic to my BP as well. I did some research and found that although it is possible for humans to be allergic to reptlies/snakes, it is extremely unlikely. It far more likely that the individual is allergic to the substrate or something else that the BP is in contact with. I believe the case for me is the substrate. I currently use Zilla's: Jungle Mix and was thinking of switching to something else to see if my allergies go away.

I have a 20gal tank 30in long. What is your favorite substrate, and how hard/easy is it to keep the humidity up?