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  1. #1
    MARSH GUEST
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    Jul 2017
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    Something growing on my rock.

    Can someone identify this? Should I leave it alone or remove it? Thanks in advance.

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  2. #2
    Supporting Member frankc's Avatar
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    Jun 2012
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    It looks like some sort of hair algae or Bryopsis to me, which I would remove.

  3. #3
    Supporting Member
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    +1 hair algae. Just siphon it off when you do your next water change

  4. #4
    Secretary sneezebeetle's Avatar
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    Jul 2015
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    Yep! Definately GHA, annoying stuff for sure:-)
    Manual removal or a siphon works great. Some consider gha presence a good indicator that something might be a little off. How are your parameters and how long as your tank been running?

    And welcome to MARSH!


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    Deanna Horning
    M.A.R.S.H. - Secretary
    Marine Aquarium and Reef Society of Houston

  5. #5
    Supporting Member Clownfish Chris's Avatar
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    It is normal in a new tank once things have settled. Absolutely remove as much as you can. Basically, if left to die, the nutrients get recycled back into food for more algae. Nutrient export is the most important concept to maintaining a reef tank in my opinion.


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