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Old 10-30-2013, 07:14 PM   #1
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emerald crabs

I have 2 in my 29g biocube as part of CUC. Lately it looks like one of them is picking at a zoa colony. They retract and close up, but don't look damaged, though it seems like it pulling pretty hard on te polyps and the mat. Keep or get it out?
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Old 10-30-2013, 07:38 PM   #2
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I'd say it most likely is eating algae around the polyps. I was worried at first too when they did that but upon further examination found them to just be tugging at algae.
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Old 10-30-2013, 08:02 PM   #3
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Yeah unlikely they would eat healthy coral
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