Purple growing on everything - except rock!

Discussion in 'Coral' started by Nytewatch, Mar 5, 2012.

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  1. Nytewatch

    Nytewatch Astrea Snail

    Joined:
    Sep 26, 2011
    Messages:
    34
    Ok so maybe someone can help me with this. I have had my FOWLR tank up and running for about 9 months now. I have purple growing on the back of the tank, the circulation pumps, the glass, and have several rocks covered with purple that I had introduced a number of months ago. But my original live rocks only have very limited and very small purple spots on them. The purple does not seem to want to grow on either of these 2 large rocks.

    So what gives?
     
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  3. SushiGirl

    SushiGirl Barracuda

    Joined:
    Sep 18, 2010
    Messages:
    2,457
    What kind of rocks are they?
     
  4. PierceEye

    PierceEye Aiptasia Anemone

    Joined:
    Aug 31, 2009
    Messages:
    582
    Location:
    Tampa Florida
    My same thoughts.....might not be limerock or dead coral