Advertisement Neither have I honestly. But I can't think of a logical reason why not. I have an 8x8 exo tera, so same width and height, I keep my 4" A avicularia in it. Shes a pretty lazy Webber. Only really covering the cage she in premolt. After her molt she just lets the webbing fall apart. I've kept Lampropelma and Heteroscodra in kritter keelers before. Both did fine. I believe tarantula Canada, one of the largest dealers up here in Canada, keeps and breeds their Avicularia in kritter keepers. There's a vid on their YouTube, or maybe their Facebook. I'll post a pic of my A avic cage in a sec. I have a ton of anchor points throughout the back part.