Is this cayno

Discussion in 'General Discussions and Advice' started by Franna29, 12 Sep 2015.

  1. Franna29

    Franna29

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    Massa.

    Can someone tell my what kind of 'algae' this is. And if it is harmfull? uploadfromtaptalk1442042990359.jpg

    uploadfromtaptalk1442042990359.jpg
     
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  3. jimilutz

    jimilutz

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    It is cyano. It will go away with time. Nothing to worry about, just a little ugly, if it gets on your corals you can just siphon or blow it off.
     
  4. Franna29

    Franna29 Thread Starter

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    Thanx. But what causes it?
     
  5. jimilutz

    jimilutz

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    Excess nutrients.
     
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