What kind of burrow does your sling have? Right now, mine has about an inch to 1.5 of inch substrate (good substrate, that I have more of), he mostly spends his time underneath the leaves not really burrowed. But, he HAS burrowed before, 3 or 4 times. I've seen him make little burrows, he just never spends much time in them and ends up back inside the leaves.
Diagonal burrow under a corbark, about 4" long 1.5" deep
Thanks, on your comments I am going to redesign his enclosure in a little bit. Also somehow he got an infestation of springtails in his thing, I am guessing they came from the nearby millipede enclosure. I dont think they hurt him, but they are literally so numerous in his enclosure they crawl over him constantly. I think he will appreciate a fresher substrate.
Springtails are good, their population will normalize with time, your enclosure is probably fine. Many ways to keep these guys happy
The reason I say that is like, the other day I raise up his corkbark, and its tiny piece of cork, but its like bottom side is rife with these little fly looking guys, but they only crawl. I know grain mites, and other mites, and these guys dont seem like mites. They have visible wings almost. But they only crawl. They are very fast. Is it possible theyre something other than springtails?
Springtails don't have wings. Would need a picture
Okay. Seems Im just better ott redoing his whole enclosure today. I will post pics after im done here for you guys.