Hi there. I'm getting a poecilotheria metallica sling soon and I'm really curious how big of an enclosure I can put him/her in (the sling will be ~1"). I already bought a pretty ginormous exo terra cage, 18"x18"x24", and I wasn't planning on moving it into the enclosure until it was at least an inch or two bigger. When my green bottle blue was a sling I kept her in a large enclosure and she seemed to do really well in it. she would find a spot she liked, web it up, and when it was time to eat I would just drop a cricket on her web. When she got bored of that spot she would just wander around and find another hide.