Hi everyone,
I'm a newbie who's been lurking for a couple of weeks.

My son and I picked up 2 small hermit crabs while at the beach, Bob (my son's) and Guido (I name pets after famous music researchers, what can I say.) I got sucked in
deep while researching how to care for them properly. (I'm trying to prove my husband wrong--hermies can be long-term pets when properly cared for.)
Once we got them home and into a tank, both promptly swapped shells and buried themselves. Prior to that, they had been rejecting most of the food we offered, but had been seriously chowing down on a sand dollar we had in the KK they came with.
They've been down for about a week and a half now, and fielding multiple-times-daily questions from my boys about when Bob and Guido will be back up; even my husband has taken to checking the tank a few times a day to check.

My initial thought was that they were de-stressing, but I don't see any signs of them coming up at night: no tracks on smoothed over sand, no nibbles on the food I'm swapping out. I suspect they're molting, but at any rate, I suspect they'll be down for a couple more weeks at least. Does that sound about right, in terms of the timeline?