Are there any tarantula species too delicate to keep?

[Dannica]

From what I’ve read on here and other forums, Megaphobema mesomelas can be one of the trickier species to keep, as it seems to be less forgiving of temperature fluctuations, and prefers it cooler than most tarantulas. I’ve not yet kept one myself though, so I obviously can’t state that as 100% fact.

 

[Luka98]

Don't hold me on this but T. blondi's still have severe molting issues in captivity i think