I figured my issue out.. my hermit crab molted EVERYTHING (and lost a few appendages in the process...) completely. Pretty nasty. I think that's what was causing the jelly film for me, some sort of break down of the claws..I've had them molt before, but it was just shell left at the bottom of the tank. This was absolutely everything all in one shot. Still sticking together, and not falling apart when I tried to net it out, so that tells me there's some sort of fleshy stuff still in the shell.
-Scott