yea thats what i heard too, but it seems to un bury itself and try to push itself higher onto the rocks, so i put it up there and now it seems really happy! thogh he does have his body/foot inside of a cave in the back, wedged in really tight, ive heard you can place them like that too, tho he did it himself. they are supposed to be nocturnal too, but this one is open 24/7 eating all it can! maybe he doesnt know how hes supposed to act! lol