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Old 12-20-2013, 12:55 PM   #1
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Emerald crab aggressive?

Hello all I was wondering has anyone else had issues with the crab being aggressive? I have lost two fish in the last two months and when I found them gone he was eating away at them. I think he is nipping at them to stress them out then getting them while their stressed. Is it possible he is killing them off? Thank you for ur feed back
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Old 12-20-2013, 03:24 PM   #2
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No. Emerald crabs will only clean up already dead fish. Check your parameters.
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Old 12-20-2013, 05:39 PM   #3
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All parameters are perfect LFS tested just to be sure, how about parasites how can you tell if I have any?
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Old 12-20-2013, 05:45 PM   #4
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Did your lfs give you numbers for those tests? I wouldn't trust "perfect" or "fine". Did you observe the test? Did they use test strips or liquid tests? Or maybe even digital for some?

You would need to observe fish for diseases.
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Old 12-20-2013, 05:52 PM   #5
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I did watch he have me all the numbers I don't have them on hand now but it also was liquid test, I asked this cause I noticed my domino damsel top fun seemed a little frayed and started turning gray
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Old 12-24-2013, 03:06 PM   #6
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I am unsure what the problem is. Are you sure its an emerald crab? check its claws. I think the pointed tips on claws are only on predatory crabs. Maybe hes not an emerald... just a thought.
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