Advertisement As long as everything goes according to plan, I'm expecting my first two tarantulas/slings! I've ordered a 2" female A. geniculata (is this size still considered a sling, or juvenile?) and a 1/4" B. albopilosum. Just waiting to hear back from the seller about shipping. I've created their enclosures following Tom's Big Spiders Sling Guide. However, because these are my first two, I would love any input on whether I've done these are okay, if they are the correct size, and if I need to change something. Substrate is coconut coir, each has a small cap for water, some sphagnum moss for humidity, and a cork bark hide (with a little room under them to encourage the T to make its home there). I plan on feeding 1/4" dubia, although I'm guessing I'll have to pre-kill them for the smaller sling. Smaller enclosure is a 5.5 oz cup, larger is 8"x5.5". Here they are.