Advertisement I was under the impression that all tarantulas web the ground, but I could be wrong. Thats a big maybe that the guy at the pet store knew that. A lot of the things you said were big maybes. I don't see what my knowledge on any genus has to do with what I said. I could be wrong on this too, but I'm fairly sure the only direct advise I gave him was I wouldn't keep a tarantula that size in a 10g. Really though it sounds like your general knowledge of the Theraphosa genus isn't all that great either.