So, I plan on getting a tarantula, and have been reading up quite a bit on them, but I'd like some suggestions. From what I've read, the best beginners seem to be the honduran curly and chilean rose. I plan on getting one of these. I have a privately owned pet store near by that I trust, and I plan on getting it from there. They have slings there, and I would like to know what kin of caging I should use as they grow. Is there some sort of rule of thumb to follow based on their leg span or something? Should I get a sling above a certain size? Can they live primarily off of dubia roaches, with crickets and other bugs given occasionally? Also, is there one of the above species you would recommend over the other?