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04-28-2008, 11:50 AM
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#1 (permalink)
| | Astrea Snail
Join Date: Mar 2008 Location: Edinburgh
Posts: 49
Karma: 55
 |  Unknown crab
It appears that I picked up a crab as a hitchhiker at some point.
Its black (or v dark colour) currently only has a leg span of roughly 1" and has a v low profile (body looks like its is only 1/8 thick at most). Very fast mover and hides well. Saw a glimse of it a couple of weeks ago but not again until now when it was hanging on the underside of a rock.
Didn't have time to get my camera out before he ran off but will try to get a photo if I see him again.
Am almost certain that its a bad thing to have. Any advise on how to catch would be appriciated.
Thanks | 
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04-28-2008, 12:37 PM
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#2 (permalink)
| | Astrea Snail
Join Date: Mar 2008 Location: Edinburgh
Posts: 49
Karma: 55
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Just saw it again.
Its legs are black and white striped and its body is mottled.
Managed to take a couple of pics. Will post in the morning when I get to the office (left the USB lead for my phone at work). | |
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04-28-2008, 12:47 PM
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#3 (permalink)
| | Giant Squid
Join Date: Jul 2007 Location: Miami Age: 39
Posts: 3,668
 
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Sounds like a Sally, but under different colors. Luna _________ 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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04-28-2008, 12:49 PM
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#4 (permalink)
| | Gnarly Old Codfish
Join Date: Sep 2003 Location: Silverdale, Washington Age: 58
Posts: 4,444
 
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Never really heard of a "good" hitchhiking crab. 
Just about always killers one way or another...
One way to try getting out....just put a small glass in the bottom close to a rock that is near with some frozen food submerged in the bottom of the glass. Crab crawls in, can't crawl out.
Another is build a miniature crab trap with some mesh netting/fishing line...bait it and wait.
Took me hours to get one out of my tank once upon a time.
Turned out to be a gorilla crab. deadly. tore my feather dusters to shreds. 
Good Luck! _________ 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!)
Last edited by omard : 04-28-2008 at 01:06 PM.
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04-28-2008, 11:36 PM
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#5 (permalink)
| | Astrea Snail
Join Date: Mar 2008 Location: Edinburgh
Posts: 49
Karma: 55
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Thanks guys, will try the glass trick first (sounds easier  )
Here are a couple of (bad) pics of the evil looking little git. Hes hanging upside down under the rock in the centre. | |
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04-28-2008, 11:41 PM
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#6 (permalink)
| | Feather Star
Join Date: Mar 2008 Location: Louisville, KY ( derby town ) Age: 39
Posts: 752
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Quote:
Originally Posted by lunatik_69  Sounds like a Sally, but under different colors. Luna |
I would agree with you luna it's a sallt light foot.
Must have hitchhiked in on a rock at some point . _________ <B><FONT face="Comic Sans MS">[font="Tahoma"] Got Questions? Need Answers?
[center][b][size="5"][URL=" | |
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05-08-2008, 01:58 PM
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#8 (permalink)
| | Spanish Shawl Nudibranch
Join Date: Sep 2007 Location: London, UK
Posts: 80
Karma: 8
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i often get black Mithrax on LR, from your description ( very black, mottled body) it sounds like the same beast.
Google the emerald crab and look at the ends of the claws, i would wager they are similar to your mystery crabs.
IF they are the black mithrax (no idea on the specie name) i have found them to be quite reef safe and a good eater of algae, i wouldn't trust them with some LPS and some Softies though.
Defo one for the sump if you have it, brilliant CUC. | |
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