How long have you had the crab(s) in question? just over a month Do you know what species they are? He's a rug Did you/Do you isolate new crabs? Yes, if possible, long story Tank Size: 10g Lid Type: Screen with plexiglass sealing most of it to keep humidity in Placement of tank in your home: Living room, away from the high traffic area Substrate Used (moist or dry & depth): Moist & approx 3 1/2 inches deep. The crabs in this tank are "smalls." and 2 teeny's. Type of Gauges: Strip/Analog/Digital: Analog (it's the temp & hum. in the same gauge) Did you test your humidity gauge for accuracy? Yes Placement of Gauges: back wall of the tank. I have a large hole cut out of the net that covers that wall so it won't effect the readings of the gauge. Temperature and Humidity levels in your tank: Degrees % temp. 79 & hum 85ish Heating Source (if UTH how much of the tank does it cover and how much substrate is over it): Under the tank, almost half the tank, and 3 1/2 inches of sand Lighting Source (type bulbs & wattage): Natural light (no lamps) Do you have at least one area for each crab to hide? Yes Is there any metal in your tank? No What types of climbing things/toys do you have in your tank? Net that covers the entire back wall, moss pit suctioned to tank, shell pit suctioned to the tank, a bridge, half log house, palm trees with hammock and vines What type of water do you use (dechlorinated tap/spring water)? Spring If you use dechlorinating drops-which kind? n/a Do your provide fresh and salt water? If yes, what type of salt mix do you use? Yes, and HBH salt. It's the only kind they have here I've looked. Do you provide dishes for water or just sponges? Dishes, the fresh water dish has a sponge to avoid drowning How many extra shells do you have for each crab? Gees, probably 3 or 4 Did you boil the shells prior to putting them in the tank? Yes, and it's done on a weekly basis Do you bathe your crabs? If yes, how often and what do you use to bathe them in? Only when I first purchase them Do you only handle your crabs with clean hands? Yes How often do you handle them? Daily if possible Have they been exposed to toxins such as chemical/cleaning fumes, perfume, spray deodorant, etc? No Do you allow your crabs to exercise outside the tank? Not often, only when I clean the tank What types of foods do you feed? Fresh only, and store bought bloodworms What do you use as a calcium supplement? Cuddle bone, which they don't have right now I HAD to clean out my tank, like it had to be done. Which meant digging. I already knew that all the crabs had just recently had a molt, or had recently molted when I bought them. Almost everyone (8) was just down there sleeping or what not. Until I came across Sylvester, my second smallest. His shell is no bigger around than a nickel. He is missing legs. All he has left is his big pincher and 1 leg on each side. I don't know what happened. I haven't seen him since I put him in the tank, he buried immediately. Something obviously stressed him out. I have him away from everyone else right now and I don't know what to do with him. He's getting around ok for only have 2 legs and a pincher. What should I do?