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Old 04-06-2004, 07:10 PM   #1
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Liverocks/Corals and Crabs

Hi, are crabs dangerous to corals?
My liverock (from Liverocks.com ) came with some small crabs and numerous other critters. Yesterday I purchased a pumping Xenia and some yellow polyps. I am now worried that the crabs will damage my corals. Should I get rid of them? If so, what`s the easiest method?

Thanks,

Paul.
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Old 04-06-2004, 07:32 PM   #2
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Get a positive ID on the crabs, most crabs are notorius for eating anything that looks edible including coral polyps. There are a few crabs that are labelled reef safe but even then you never know. I've had a sallylightfoot for about a year now and have had no problems but he is closely watched.
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Old 04-06-2004, 07:39 PM   #3
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i have 2 sally's and 2 emerald crabs. i have no problems with them. they are awesome with algea
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Old 04-06-2004, 08:01 PM   #4
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Crabs are EVIL!!

That's my story and I'm sticking to it
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Old 04-06-2004, 08:28 PM   #5
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Well then, I guess time will tell . I`ll keep a close eye on them .

Thanks,

Paul
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Old 04-07-2004, 05:47 AM   #6
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Well, my emerald is eating away my coralline algae which is not a good thing.
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Old 04-07-2004, 10:07 AM   #7
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As soon as I finished typing my reply, I glanced over at my polyps. There he was, a nickle size crab picking on the colony! Well, I got my answer, crabs are bad! Stood up to 2 am, managed to remove 5 of the critters .

There is still something making a clicking sound, mantis maybe?

Paul.
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Old 04-07-2004, 10:37 AM   #8
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My Sally Lightfoot eats coralline for lack of anything better to do, but then the coralline grows so fast that it doesn't really matter, as long as he stays away from the polyps.
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Old 04-07-2004, 11:49 AM   #9
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Quote:
Originally Posted by pwilk20

There is still something making a clicking sound, mantis maybe?
Could be a pistol shrimp as well, which are generally safe to keep. I have a few emeralds and a few unidentified that I didn't catch yet but when I do they are gone, they ate a really cool mushroom I got a couple months back. I agree w/ rr, crabs are evil, but I've been lucky with my emeralds so far.
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