That's a lot of question.oh thanks. btw how will i know if my t's is in stress or something?
im sorry im a newbie.That's a lot of question.
General, transient stress:
It'll sit all huddled up with it's legs around it's carapace (kind of like in your picture), or it will be flicking hair at you, or it will be giving you it's best threat pose.
They will typically climb up onto the glass/sides of the enclosure to get off the ground and stay there if it's too humid/the sub is too wet for their liking.
If it's too dry, they'll hang around the waterdish or moistened area constantly.
If all it's legs curl underneath it, in what we call a "death curl" it's in serious trouble, and it's life may be in danger. Not to be confused with grooming/weird "tarantula yoga", where a tarantula can have several legs folded under it at once.
There's probably more that I've forgotten/haven't seen yet, but these are the basics I guess.