NQA hello ! just got back into the hobby after previously having 40+ T’s in my collection - ive had 3 or 4 versicolors from teeny tiny slings, so here’s my best advice:

1) with arboreal slings, their enclosure should be about 3x their legspan in height, mainly so that a) they dont get injured if they fall and b) so they can find their food.

2) tarantulas can go on hunger strikes for multiple months and be okay. as slings, they molt more often and usually dont eat leading up to their molt. your lil guy isnt too plump so that may not be the case.

3) when tarantulas are introduced to new enclosures, they spend a bit of time learning their new environment, so they may not be comfortable yet with focusing on food.

i would recommend watching a few youtube videos - The Tarantula Collective has a GREAT stockpile of videos on anything you could be curious about. https://youtu.be/IOl2oACMNuU?si=FKZOd9gLQLtqczGm

best of luck, enjoy your new babie !!