you shouldn't need a humidifier. what is your humidity now that you folied the top? where is your water bowl located? give us an updated pic of your setup.

the eco earth crap... that was one of 20 different substrates i tried. it was my least favorite. it was just plain messy. it is basicly wood and dirt. the dirt will get everywere. when you pull the snake out to handle, even he will have dirt on him..... not to mention the tank walls that you will have to clean often. the only way to really get the stuff out when the snake poops and peas is to break down the entire tank and spray it out. WAY too much trouble for me!

Have i mentioned news paper?