I recently purchased a sally lightfoot crab. Immediately I noticed it is missing a leg. I've heard this can happen and eventually it may grow it back but would take some time. However, tonight I noticed it seemed to have "lost" its left claw. Its sitting there resting on my sand bed and sure enough, there isnt a replacement on the crab itself so its not a molt. Its still very active and eating telly well. What may be causing this? My tank is fully cycled and reads ∅ across the board. Salinity is at 1.025. I also have in the tank: 2 occelaris clowns, a single blue damsel and a coral beauty angel. None of Wichita seem to show any violence at all. I also have 3 blue leg hermits, 6 or 7 nassarius snails, 3 margarita snails and a single blood red fire shrimp. Oh, and a decorator crab and a Hawaiian feather duster. Is there any chance anything in my tank is causing this? Nothing in my tank showes violence to one another. My tank is a 55 with a 25 gal
sump/refugium with a protein skimmer. The temperature is currently at 79° and has little variation. Any help would be great. I'd really hate to see the crab lose any other body parts because if it continues, it may no longer be able to eat or walk.