Hi all! I made a post yesterday about my first tank for my ball python I'm soon going to get. I have the temps correct with the hot side between 89-91F and the cool side at 80-82F. My issue is humidity. I currently have aspen shavings in there but the humidity is only between 20-25% and I don't want to wet the aspen too much because of bacteria. I'm going in a bit to pick up a different substrate that will hold my humidity better but I'm not sure what to get so I have link to 3 different substrates and I just need help in figuring out which to get. I need the one that will raise my humidity a lot as it needs to go up about 25% more. Here's a link to my tank if it will help also ... http://imgur.com/26szuVZ

And the link to the three substrates...

http://www.petsmart.ca/gsi/webstore/...SKU=36-5133039

http://www.petsmart.ca/reptile/subst...6-catid-500013

http://www.petsmart.ca/reptile/subst...Term%3Dcypress

Thanks in advance!