they may or may not. many of my grammys and brachys don't use their hides, or sit on top of their hides. i've actually taken one hide out because he seemed to be trying to fill the hide with dirt rather than use it, and he's never burrowed. it's all about the individual spider and how secure they feel.Now that we've got that out of the way, I've got a question about my G. rosea. I've kept them before, but I've never actually had one burrow, because I've always given them artificial hides, now I want to experiment. But when, if provided with no artificial hides, will a G. rosea decide to burrow?