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Discussion Starter · #1 ·
OK I have your standard arrow crap (big spider looking creepy) for about 8+ months. He is one of my prize critters in my reef, Just recently I noticed him doing something weird. His butt opens up and he putts stuff in there and takes stuff out. Like a trunk, It folds up and closes back over. Now I've spent MANY hours watching my tank, and I have NEVER seeen him open up his butt before. IS this normal? or do I just have a sick or wierd crab?

Checked my water levels and they are all doing good. Should I worry? Is this a sign of something bad happening? or have I just missed normal behavior.


-Drew
 

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I had a spider crab do the same thing! Normal behavior!;)
 

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I seem to remember something about them having a tail (or whatever) that folds under their body, which is not apparent all the time, so probably normal.
 

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Discussion Starter · #4 ·
thanks guys. Guess i'm worrying.
I however have now renamed my crab to Crab Lopez.
 
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