Help again - Cotton wool

Discussion in 'General Discussions and Advice' started by Zandy, 19 Oct 2012.

  1. Zandy

    Zandy

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    Hi again, just a question. I have seen on my live rock that there is two patches about the size of a 10c and 20c coin. The stuff looks like cotton wool, but when i tried to remove it it's rock solid hard and not slymy or anything. My big green tip anemone used to live in that rock cavity, but has since moved and now i am able to see it. What could it be??:eek:
     
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  3. belindamotion

    belindamotion Google Master

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    Can you post a clear picture...very hard without photo...:blush:
     
  4. Zandy

    Zandy Thread Starter

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    Best photo i could manage

    [​IMG]
     
  5. Zandy

    Zandy Thread Starter

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    Another photo

    [​IMG]
     
  6. NJH

    NJH

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    It is a sponge. I can not remember it's name but it is harmless. It is a filter feeder.
     
  7. Zandy

    Zandy Thread Starter

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    Please just explain the term "sponge" to me??? Should i remove it or leave it?
     
  8. NJH

    NJH

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    Leave it. It is good to have. It is a multi cellular organism and part of life in your tank.
     
  9. Zandy

    Zandy Thread Starter

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    Ok then, would leave it. For all that asked i uploaded my tank pics under my albums
     
  10. belindamotion

    belindamotion Google Master

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