i was doing my daily stare at my tank when i saw in the corner of my tank what looks like a small blueleg hermit crab out of its shell dead in the sand...i pocked it and it is def dead...how could this be? all 3 of my crabs are accounted for and my other hermits are larger than this thing...could it have come out of my
lr? i also found a dead pod next to it

(looked like plankton off sponge bob...sorry i dont know the true name)
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30gal / 2: maxijet 600s / 150w heater / CPR Bak Pak2 (maxijet 1200)/
FOWLR
30lbs base rock
6lbs Brazilian
LR
35lbs sand (20lbs of
lfs ls i think it cycled my tank faster)
3 blueleg hermits
4 turbo snails
royal gramma
gold stripped maroon clown