1) what's the best substrate? was looking into eco earth.
I use newspaper, paper towels, and aspen, I have different reasons for each, but those are the 3 I would recommend.

2) best thermometer & humidity thermometer
Anything that isn't cheap, or sold in pet stores. I like acurites if you want something to sit there. I have 3 Weather Channel indoor/outdoor thermometers which are pretty nice, I got them on sale for $12 a piece. I highly recommend picking up a laser thermometer. My husband got me a Raytek AutoPro, way too expensive, but I love the thing. A $20 temp gun is more than enough!

3) best tank setup
2 identical hides, warm/cool gradient, safe substrate like paper/paper towels/aspen, and a water bowl. Take a look at our care sheet for a more in depth description.

4) any other advice ???????????
Don't handle the snake if it's not eating. No tape in the enclosure. Make sure the enclosure is escape proof.