Advertisement Generally speaking. People overhype Theraphosa, Avicularia, Lampropelma, etc. Truth is, all of these genera can be easily maintained by a keeper with just the basics of husbandry down. There is no special range of humidity. All of these genera tolerate dry to damp conditions. In fact, drier conditions are your safest bet with husbandry. For anything. Theraphosa still thrive. Lampropelma do great. Avicularia do best. Drier conditions are achieved by simply not keeping all the substrate soaked. Or even damp. Stuffy conditions have killed more tarantulas than anything else. Where a tarantula is really separated from beginner species to advanced is in its venom, defensiveness, and skittish behavior. Husbandry is barely something to be considered. Will a beginner have the exact same success raising these genera as an experienced keeper? Doubtful. And I'd argue a big reason of that is the "experienced" keepers overcomplicating their care and saying it's the only way. Fact is, majority of species can live on two inches of semi damp substrate and do just fine. Don't think you're special because you can raise a certain species.