My aphonopelma hentzi has a burrow that is right against the enclosure wall so I can see into it. Anyways, he has been defecating in the corner of his burrow, the furthest from the opening. Yesterday he put a little web over it. I'd really like to clean it but I don't want to disturb his burrow unless it's really necessary? My avicularia avicularia makes it much easier for me to find, always going in her water bowl or near it. This is my first burrowing tarantula, so I'm not sure how to go about this.