sea urchin

Discussion in 'General Discussions and Advice' started by mitch, 6 Nov 2014.

  1. mitch

    mitch

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    Hey guys can anyone tell me when my sea urchin cleans my rocks it stays white for a few days ? But If he cleans the back glass it doesn't seam to colour ?

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  3. Dexter

    Dexter

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    His most likely eating the coraline algae from the rocks
     
  4. TaahirS

    TaahirS MASA Contributor

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    What kind of urchin is it?
     
  5. TaahirS

    TaahirS MASA Contributor

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    Yep, probably eating coralline.
     
  6. dallasg

    dallasg Moderator

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    the urchin removes the top layer of rock to get the algae off, the white is the new exposed rock surface. your glass wont change colour as they arent removing any layers of glass
     
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  7. OP
    mitch

    mitch

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    its a snow ball urchin...i think should the rock be turning white thou?
     
  8. dallasg

    dallasg Moderator

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    see my reply
     
  9. OP
    mitch

    mitch

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    @Dallas thanks so he is defiantly doing his job...:lol:
     

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