thanks, i willThat enclosure is too big for such sling. You'll need something smaller.
Go to Tom Moran's youtube channel and look for Caribena versicolor husbandry video. You'[ll find most of important information there.
IMHO....your enclosure should be ok. I try to provide my T's with an enclosure 4 times its size. The cm kinda through me off, but with Googles help I converted your 12cm X 12cm X 20cm to 4.72 in X 4.72 in X 7.87 in. Which should be ok...but that's just my opinion.so i am thinking of getting a caribena versicolor for my second tarantula, it will be my first arboreal T. I will get a 1.5 inch sling, i need help on getting a appropriate enclosure, is a 12cm X 12cm X 20cm good. thanks