As someone who also started out with that tortoise table I recommend getting rid of it trust me on this it will be less headache for you to get a closed chamber enclosure. I purchased a 4x2x2 enclosure from Animal plastics but you can use a deep Rubbermaid tote in the meantime. I battled with...
I just went with the reptibark. The home depot and Lowe's didn't have the small potting media. After working out a few kinks humidity stays mid 80's no mister's