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Thread: the algae will not grow ..

  1. #1

    Join Date
    Dec 2014
    Location
    France
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    the algae will not grow ..

    Hello everyone,
    That I have a problem with my filter algae ..
    (I'm French so internet translation ..)
    So it's 34cm by 25 cm I led spot lights with 2 of each with 36w LED 3 Watt.
    That's my concern is that it not grow .. This will do one month and I still have this almost black viscous brown seaweed.
    So I wonder if I not light too?
    I am to 12pm.

    This thank you very much for your help and again sorry for the translation ..

    Was all good weekend

  2. #2
    Administrator
    Join Date
    Oct 2008
    Location
    Salt Lake City, Utah, USA
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    10,565
    Hello from France,

    Black growth means the LED is not enough, because your nutrients are very high. A picture of your installation will help.

    You say 12 hours LED per day, so the first thing to do is increase to 22 hours per day.

    The LED is probably too far away from the screen.

  3. #3

    Join Date
    Dec 2014
    Location
    France
    Posts
    2
    Hello,
    The 10cm are much it rained not illuminate the entire grid ..
    I would make you a picture tonight.
    22h! Ok, I'll try .. I think that illuminate too strong.

    Thank you for your advice.
    How long I will see if the increase in the duration outperformed grow algae?

  4. #4
    Administrator
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    Oct 2008
    Location
    Salt Lake City, Utah, USA
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    10,565
    You will need to harvest many weeks before improvement in aquarium.

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