Like the title says, I've got a few questions about corns and I figured some of y'all would be able to help

1. If I do end up getting a corn I'll almost definitely be getting a hatchling because I just LOVE watching animals grow. I've heard that it's best to keep hatchling corns in small tubs for the first few months, and the one's I've seen recommended for them are too small for a UTH so I'm wondering if the only option would be heat tape? If so, how do you go about setting that up? This question feels weird to ask, but I'm honestly so clueless about heat tape I don't even know where to begin.

2. When they shed, what's the best way to increase humidity for them? Since they need such low humidity would it be detrimental to their health to increase humidity throughout the whole tank/tub? Is just a humidity box better?

3. I use eco earth for my BP, when I put new stuff in his tank I mix it with a bit of water so it holds more humidity, but after a week or two it's almost completely dry and I have to resort to using moss to keep the humidity up. If I were to dry out some eco earth would that be okay to use for a corn? I don't have any problems with getting a different substrate if that wouldn't work, I just thought it'd be worth asking

Thanks for reading! <3