ID needed please

Discussion in 'ID Needed' started by Giepie, 19 Aug 2010.

  1. Giepie

    Giepie

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    Please ID this urchin I found in my tank...[​IMG]
    I saw it in my tank a moth ago, but took me some time to find it again...

    The body is +/- 1cm and spines are 1,5 - 2cm long. Doesn't like to be bothered and will move at the speed of an F1 racer... okay, I'm pushing it, but this this moves fast. I had to turn the LR it was sitting on a copuple of time before I could get this pic.

    I would like to know it's scientific & common names - love to research things that I find in my tank.

    Thanks guys (and gals)
     
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  3. jacquesb

    jacquesb Retired Moderator

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    Hi Giepie - this is a pencil urchin.
     
  4. maj

    maj

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    how did u just find it in ur tank?cool find tho
     
  5. Giepie

    Giepie Thread Starter

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    OMG!!!:slayer:

    Thanks for the feedback, jacquesb... Good or bad for my corals? I have an open brain, starpolop, sun coral & xenia...
     
  6. leslie hempel

    leslie hempel Moderator MASA Contributor

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    they come in on LR.. and grow very quickly.
     
  7. jacquesb

    jacquesb Retired Moderator

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    They are considered to be "reefsafe" Giepie. They just become "bulldozers" when they become bigger, sometime moving loose rock and corals....
     
  8. Giepie

    Giepie Thread Starter

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    LOL

    good question...

    I spend at least an hour every day just sitting by my tank looking for small things growing on my LR... Spotted the urchin sitting inside the shell of my one urchine that didn't make it. At the time it was tiny... Spines was under 1 cm long... The next day it was gone. Spotted it again in the beginning of the month and decided to get a pic.

    Other things I also found:
    Bristle star (3 of them) - awsome find
    Bristle wors (just of picture on the pic, I saw one moving back into the rock)
    Velvet crab (I think they like to live inside the mouth of nennies - not sure)
    Brine shripms (don't even ask - 'cos even I havn't got a clue)

    I recon the eggs of all these things must have been on my last 2 corals, so I think I can say that my beginneers luck is still very active...
     
  9. SaltyReef

    SaltyReef

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    I have one of those urchins but i had to pay for mine. they hide all day and come out after lights out.
     
  10. SaltyReef

    SaltyReef

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    Mine is about fist size including the spines
     
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