Hey, I am keeping my BP in a 40 gallon aquarium and just can't seem to keep it humid. I am currently using aspen but want something that will keep the humidity up. I'm slightly worried cuz unless I'm spraying the tank repeatedly throughout the day, the humidity only stays around 30% which isn't good for shedding and the health of my snake. I have a uv strip light on one side, a UTH and heat lamp on the other side with 2 hides on opposite sides of the tank and a humidity chamber on the warm side with the water bowl right In the middle. My tank also has a screen top that i cover half with a damp towel although that doesn't seem to really make a difference. So basically I'm looking for a substrate that will be safe for my snake, keep it humid without molding occurring, and possibly not be too expensive. I know it's a lot to ask for but I can't get a new enclosure and need a way to keep humidity up. Please help me out. Thank you for your time.