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I just got a female fiddler crab 3 days ago. I noticed that every night once it is completely dark, she goes into a corner under my cryptocoryne plant and her eyes are down, flat in their little slots. I assume she is just sleeping, becaue if i shine a light on herfor a while she gets up, and she's normal at daytime. i thought it was just at night she did this, but she was like that again when i got home today. do fiddler crabs sleep with eyes shut? do they take naps? could she just have her eyes down because shes under some low leaves? any info appreciated. thanks!
 
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