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04-12-2008, 07:15 AM
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#1 (permalink)
| | Skunk Shrimp
Join Date: Mar 2008 Location: jackson, n.j.
Posts: 286
|  crab help
i would like to know if anyone can help, or ever encountered a problem i am having.
i have a few emerald crabs in my reef. i don't have many corals, as i am just starting out. i've got a frag of waving hands, and a mushroom i just purchased, yesturday.
the crabs are eating my waving hands!!! i've seen the little bastard pulling them apart! the look like stumps!!!
also, the green mushroom i purchased yesturday has much of the green polops missing now!. i can only assume the crab is eating them also.
are emeralds known for things like this, or could it be a hitchiker crab, from the live rock? please help.
if i could catch them all, i'd take them out, but how am i supposed to get them? | 
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04-12-2008, 07:24 AM
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#2 (permalink)
| | 3reef Sponsor
Join Date: Aug 2006 Location: Va/Ct
Posts: 3,568
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Its a crab and all crabs are omnivores Nore are totaly reef safe
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Some of the world's greatest feats were accomplished by people not smart enough to know they were impossible. | |
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04-12-2008, 07:32 AM
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#3 (permalink)
| | Skunk Shrimp
Join Date: Mar 2008 Location: jackson, n.j.
Posts: 286
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so what should i do? will the polops on the mushroom come back? | |
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04-12-2008, 07:47 AM
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#4 (permalink)
| | Giant Squid
Join Date: Jul 2007 Location: Miami Age: 39
Posts: 3,675
 
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To biggy back on what tangster said, the only crabs that I know of that has left alone my corals are hermit crabs. I have had emeralds before and I never noticed them eating any corals, at least in my tank. As for catching them, get a small container with a string, put some silver sides in it and wait. In no time,they will be all over it and lift up the container. _________ 9YR OLD 90G 30G w/d Mag18 150G skimmer 692w MH,yel&kole tang,foxface,midas&convict blenny,B&G chromies,Blk/yel fin chromie blackcap,nemo,neon goby,6line; Blastomussa Merleti,Acan ,BUBBLE,Torch,LTA, Goniopora(2), Acropora(2),Brain, Moon, assort zoas, yel& G star polyps, R&G open brain, P&B ricordia, montiporas, cup&candy corals, enias,B/G mush,flower ane(2), cherry red mussa, dusters,cleaning crew  | |
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04-12-2008, 07:56 AM
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#5 (permalink)
| | Fire Squid
Join Date: Sep 2007 Location: ohio Age: 32
Posts: 2,936
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Same here, I had emerald that reeked havoc on my zoa's......
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5.5 gal, 72w of pcs, 2 leds, rio nano skimmer, 40 gal hob filter, 50w visi-therm heater, 5pds lr, 1 inch live sand bed, 1 australian black perc clown ,1 porcelain crab, , 1 pep shrimp, 1 lge turbo , 3 cerith, 1 astrea, 1 nassaruis snails, neon grn bali slimer acro, purple acro, millipora's, feather duster, monti's, duncans, grn polyps, shrooms, zoa's, blue clove polyps, purple death pallys and grn star plyps. | |
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04-12-2008, 08:02 AM
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#6 (permalink)
| | Gnarly Old Codfish
Join Date: Sep 2003 Location: Silverdale, Washington Age: 58
Posts: 4,474
 
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Quote:
Originally Posted by evojoe67  if i could catch them all, i'd take them out, but how am i supposed to get them? | Repost from: Emerald crab dangers? (lillys Grandad - 04-01-2008, 08:34 PM)
How I finally ended up doing it after many, many tries with various reported methods... Quote:
Originally Posted by omard This may have something to feelings expressed above... "Killer Crab" - WARNING! (12-10-2003, 02:34 AM)
Sorry, pics no longer exist, but was a little fuzzy brown devil. Think we all decided it was called a Gorilla Crab. 
Catching was tough. Had something to do with a minature version of my crab net out in garage...small net, bait with piece of line attached & many long hours of patient waiting and repeated failures. But being both stubborn (and angry) finally got 'em.
Think it may still reside in freezer somewhere.  | _________ AG "125," AquaC EV 180, 30 gal sump, "SCWD", 80 lbs LR, CoralSeaLife "Moonlite" Hood, PFO 250W HQI Mini-Pendant (SPS HQI 14000k bulb)
12 Gallon NanoCube - 24w stock PC 50/50 light "...nothing good ever happens fast in a reef tank, only bad things happen fast..."
- MIKE PALLETTA - (Davis Family Reef Aquarium - Home Page/Reef Log) (Best Photos of 2008!) | |
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04-12-2008, 08:49 AM
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#7 (permalink)
| | Giant Squid
Join Date: Jan 2006 Location: Meriden, Connecticut Age: 43
Posts: 3,866
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I have never had any problems with my Emerald attacking my corals. Often times if that is in fact what it looks like your crab is doing, it may be just trying to capture food surrounding your corals.
But again as mentioed above by tangster, they are omnivores. _________ 125gal.w/Mag9.5 return(dual megaflow)>Mag7 pump Aqua Cev180skimmer.Wave2k Hamilton Reefstar(2)250watthqi(mh)pend.a Yellow, Naso Tang Red Lip Blenny Percula Clown Demoiselles Niger Trigger F. Wrasses Ceriantharia Orn.Shrimp and Stars Hermits Queen Conch asst. snails> Stars Zoos shrooms Montipora Brains Gorgonians Favia Turbinaria(large+small polyp) Acropora Xenia Tridacna (CroceaMaximaSquamosa) Leathers <35+75gal.reef tank as well> 
"IF THE PHONE DOESN'T RING...IT'S ME"  jb  | |
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04-12-2008, 08:58 AM
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#8 (permalink)
| | Skunk Shrimp
Join Date: Mar 2008 Location: jackson, n.j.
Posts: 286
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i've literally seen the crab pull the stalk of the waving hands, and with the other claw pull it apart and eat it! the stalks have bite marks all up and down them, with the hand parts on top totally gone!
can they repair themselves? | |
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04-12-2008, 09:30 AM
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#9 (permalink)
| | Gnarly Old Codfish
Join Date: Sep 2003 Location: Silverdale, Washington Age: 58
Posts: 4,474
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Quote:
Originally Posted by evojoe67 i've literally seen the crab pull the stalk of the waving hands, and with the other claw pull it apart and eat it! the stalks have bite marks all up and down them, with the hand parts on top totally gone!
can they repair themselves? |
If by "Waving hands" you mean zenia...heck, you might just want to keep crab around to keep in check before corals spread all over tank.
May be some members here that would like to have a crab that did that.
Might even be able to trade for another coral or something...  | |
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04-12-2008, 09:43 AM
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#10 (permalink)
| | Skunk Shrimp
Join Date: Mar 2008 Location: jackson, n.j.
Posts: 286
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Quote:
Originally Posted by omard If by "Waving hands" you mean zenia...heck, you might just want to keep crab around to keep in check before corals spread all over tank.
May be some members here that would like to have a crab that did that.
Might even be able to trade for another coral or something... | have'nt gotten to the point where i know the technical names for things yet, sorry  | |
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