What are these growing out of my rock?

Discussion in 'New to Reefing' started by Jenny mitchell, Nov 20, 2016.

  1. Jenny mitchell

    Jenny mitchell

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    we have a few white tube like things growing out of our rock. At first there was just one, but are more now, should be getting rid of them?
     

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    Jenny mitchell, Nov 20, 2016
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  2. Jenny mitchell

    Becky Administrator

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    Weird! Are they flexible or spiny? And do they retract?
     
    Becky, Nov 20, 2016
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  3. Jenny mitchell

    Jenny mitchell

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    They're flexible and didn't retract when I touched one of them
     
    Jenny mitchell, Nov 20, 2016
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  4. Jenny mitchell

    Big K

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    Looks like some type of sponge to me. I have the same thing I believe. I'd say it's harmless.
     
    Big K, Nov 24, 2016
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