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#1
11/12/2007, 02:41 AM
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How bout a blue mithrax crab (emerald crab)
It must have been in my tank from day one.But a few weeks ago i saw this guy did not know it was blue but just knew it was a crab. I saw it in one of my more prized acros and was able it snatch it out and take a few pics be four off to the trash
  
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Peace,Dave Superman puts on Tim Tebow pajamas when he goes to bed The Heisman as a sophomore nuff said |
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#2
11/12/2007, 03:17 AM
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arent they reef safe?
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Dolphins. They think they're so cute. Oh, look at me, I'm a flippy little dolphin, let me flip for you |
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#6
11/12/2007, 12:51 PM
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No he was plenty alive.In the book says safe but i dont trust any crab in my tank especially when i find it all up in my coral. Dose any one know what makes crabs,lobster and crayfish turn blue i know its a rare thing
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Peace,Dave Superman puts on Tim Tebow pajamas when he goes to bed The Heisman as a sophomore nuff said |
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#8
11/12/2007, 01:14 PM
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senseless killing.
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It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change. Charles Darwin |
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#9
11/12/2007, 01:28 PM
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OK most of your must not see were i FOUND it in one of my acros. I dont have any algae in my tank so he might have been starving and changed his eating behaviour.And i hold true to that no crab is safe.And yes it was very cool but i have no other tank to put in.People pull out and kill bristle worms and they are good for a tank. I see no difference.
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Peace,Dave Superman puts on Tim Tebow pajamas when he goes to bed The Heisman as a sophomore nuff said |
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#11
11/12/2007, 01:32 PM
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No sump?
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Red House=My 90 build. Matt. |
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#12
11/12/2007, 01:41 PM
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no sump I run a old style tank lots of live rock lots of water flow and heavy protein skimming
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Peace,Dave Superman puts on Tim Tebow pajamas when he goes to bed The Heisman as a sophomore nuff said |
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#13
11/12/2007, 02:03 PM
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Put it in a jar on the bottom of the tank til the next time you go to the LFS and get some credit for it. Don't you work at a LFS?
Amoore311 - You've never had something just crawl across a coral before?
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It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change. Charles Darwin Last edited by fishysteve; 11/12/2007 at 02:13 PM. |
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#14
11/12/2007, 03:04 PM
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dude somebody probably wouldve bought that off you. not evil to kill it, but dumb
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"and the delicate mechanism stripped its gears" |
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#15
11/12/2007, 03:04 PM
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I do work in a fs that were i see how bad crabs can be
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Peace,Dave Superman puts on Tim Tebow pajamas when he goes to bed The Heisman as a sophomore nuff said |
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#16
11/12/2007, 03:18 PM
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Half my acros have "crabs" in them.
Anways, there are a few bad ones out there, but emeralds are have been observed to display "acro-crab" behavoir and live in acros, while not harming them at all. IMO any crab found living in an acro should be left alone if no damage is seen, especially if it is already considered reef safe. The exception may be the hairy guys with blue or red eyes. From what i have read, the crabs that have really been observed to REALLY harm acros/corals you will probably never see without a flashlight, and definatly not hanging out in them. You will jsut see their damage... Last edited by HBtank; 11/12/2007 at 03:24 PM. |
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#17
11/12/2007, 03:27 PM
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Acros crabs live in a symbiosis relationship with the acro. mithrax do eat algae for the most part but like most true crabs will turn predatory given the chance or no food
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Peace,Dave Superman puts on Tim Tebow pajamas when he goes to bed The Heisman as a sophomore nuff said |
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#18
11/12/2007, 03:35 PM
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I'm pretty sure I've read that black pincers = bad crab. Kinda hairy, too. You sure it's a mithrax?
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#19
11/12/2007, 03:38 PM
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It might not be just what it looks like to me . It came from the ocean i did not buy it
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Peace,Dave Superman puts on Tim Tebow pajamas when he goes to bed The Heisman as a sophomore nuff said |
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#20
11/12/2007, 04:00 PM
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ive seen plenty of crabs hurting acros, without a flashlight.
i dont' think that is a mithrax, i think it's another type; good move getting rid of it.
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Anthony red house, up there^ = my tank pics "Use filters" |
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#21
11/12/2007, 04:02 PM
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Quote:
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Peace,Dave Superman puts on Tim Tebow pajamas when he goes to bed The Heisman as a sophomore nuff said |
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#22
11/12/2007, 04:34 PM
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ALL CRABS are omnivores, no crab is 100% reef safe. ALL crabs are opportunistic feeders, which means if they can catch your favorite fish sleeping, they will EAT it. I caught a emerald crab eating a Abalone, shell in one claw, eating it with the other.
In case all of you people with hermit crabs didnt know, they will hunt down snails and kill them and eat them while they steal their shell for a new home reguardless of how many empty shells you have in your tank for them to move into. If they like the shell your snail has better, they will take it. I use to believe in emerald until I caught that one. I always had a problem with snails and couldnt figure out what the problem was, my nitrates and everything always checked out fine. Removed all the emerald crabs, and havent lost a snail since! |
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#23
11/12/2007, 04:40 PM
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Just for the record, omnivore DOES NOT mean herbivore.
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#24
11/12/2007, 04:46 PM
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Quote:
My bandit acro crabs and porcelin crabs are just a couple examples. As well, many people have emeralds with easily catchable sleeping fish like fairie wrasse, including myself, and have no problems with "fish eating". So stating they "if they can, they will" is also false. Your tank souunds like it was underfed and not established. JMO. Last edited by HBtank; 11/12/2007 at 04:52 PM. |
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