What's wrong with my back glass

Discussion in 'General Discussions and Advice' started by RiaanP, 10 Sep 2008.

  1. RiaanP

    RiaanP Moderator

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    What is wrong, or is it "OK"

    [​IMG]

    The coraline algea are like peeling off, and since this past weekend the cleaner shrimp are walking up and down the back glass. Something they never done. Or does this happen and I should sit back and ignore it.
     
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  3. jacquesb

    jacquesb Retired Moderator

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    Hi Riaan - this does not seem like corralline algae to me. Rather some green diatom-type algae.... or something like it....

    I would suggest measuring your water parameters again. And ensuring that you do not have any issues with any of it....

    This actually looks like the algae is busy dying off - perhaps your nutrient levels/phosphate levels have dropped.
    Have you recently added some type of phosphate remover perhaps? Or upgraded your skimmer?
     
  4. RiaanP

    RiaanP Thread Starter Moderator

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    I got a useless Aquamedic skimmer. My brother fiddled with it, and for the last two weeks it is actually working, not cupsfull, rather like a third every second day.
    Also did a 60L water change, first one for two months. And up the salt as it was a bit low.
    Will check the phosphate tommorrow.
     
  5. IMarine

    IMarine

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    Hi bra like Jacques said check your parra,and it does look like cyno bacteria
     
  6. Mekaeel

    Mekaeel Moderator MASA Contributor

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    I had this on my old 6 ft tank. It is a phosphate issue. When you scrape it off, does it come out like sheets of Nori? I know when i use to remove it,my Foxface, Surgeons and tangs use to go crazy for it.
     
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