Rock colour

Discussion in 'Beginner Discussions' started by nudibranch, 12 Feb 2014.

  1. nudibranch

    nudibranch

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    My rock is turning a purple colour where the red monti coral is placed. Is this from the coral or some sort of algae?

    20140209_182952.jpg

    20140209_182952.jpg
     
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  3. MistaOrange

    MistaOrange

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    Cyno?
     
  4. Fraser W

    Fraser W Swazi Reefer

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    you wanna try and get rid of all that purple cyno by siphon ing it off and maybe you must try amd increase the flow in your tank
     
  5. dallasg

    dallasg Moderator

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    thats cyano, siphon it out, i have a little, i think its caused due to high temps
     
  6. Hussar

    Hussar

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    Different to coralline bacteria ?
     
  7. makharold

    makharold

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    Tagging
     
  8. irie ivan

    irie ivan MASA Contributor

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    Coralline is not a bacteria, its a calcifying algae. Pretty pink stuff that most aquarists want in their tank... Debatable though, lol.
    Cyano is a bacteria. One that no aquarist wants in his or her tank.
    Can get pretty annoying, as Dallas said, especially this time of the year.
    Its not crazy about hectic flow, but other causes are nutrients (although essentially it can "manufacture" its own nutrients).
    It also prefers light towards the redder side of the spectrum, older bulbs often get the blame therefor.
    Going on a limb here: but seems like there has been some damage and tissue death on the montipora? With remnant nutrient rich tissue remaining, cyano is bound to settle and get a holdfast there.
     
    Last edited: 22 Feb 2014
  9. Hussar

    Hussar

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    Thanks
     

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