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Thread: Nitrates and algae

  1. #1
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    Nitrates and algae

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    Hi guys,

    The nitrates in my tank are around 30-50 ppm after a 25% water change. Is this too high? What can I do to lower it. I do regular 25-30% water change every 2 weeks.

    Some things I'm contemplating:
    - changing to a larger filter. Currently using the smallest Ehiem Ecco (2235, I think) in a 40"x18"x18" (about 170 litres/ 45 gallons of water) planted tank.
    - adding a Fluidised Bed Filter.

    Will these help? I'm thinking of sticking to Ehiem. Which should I get?

    Also started getting green water again after I trimmed the plants. First major trimming since rescaping the tank about a month ago. Have reduced the photo period and stopped fert. What else can I do?
    Vincent - AQ is for everyone, but not for 'u' and 'mi'.
    Why use punctuation? See what a difference it makes:
    A woman, without her man, is nothing.
    A woman: without her, man is nothing.

  2. #2
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    Hi, are you having to many fishes for the size of your tank ? Stop or reduce feeding for at least 3 days and see if it helps. Waste from fish and food contributes to the nitrate so remove that from the equation.

  3. #3
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    6 Pearl Gouramis, 6 Corys, 2 Otos and about 19 or less Yamatos.
    Vincent - AQ is for everyone, but not for 'u' and 'mi'.
    Why use punctuation? See what a difference it makes:
    A woman, without her man, is nothing.
    A woman: without her, man is nothing.

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