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Thread: anybody with Green water experience

  1. #1
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    anybody with Green water experience

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    hi guys,
    anybody has any experiences to cure 'Green water", plz share some advice...
    cos my tank has been plague with this problem for 2 months plus...kind of fed not being able to see my fishes...
    i've read on the forum on the various ways to cure, but doesnt seem fruitful to me...
    i've tried the "blackout method" changing water, i've tried reducing my lighting from 8 to 4 hours only, i've stop dosing liquid fert,
    i removed decaying plants, even did a 100% water change....
    now i'm thinking of resorting to those solution which claims to remove green water, though i guess it's not really advisable by some of u...
    i'm ADDicted to this wonderful hobby

  2. #2
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    Those methods you tried usually work, especially balck out... but if it keeps coming then something is causing the re-occurance. You must fix the cause as well.

    First of all, we need to know more about your tank... cut and paste the text from the "help request form" and fill in the info.
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  3. #3
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    Tank Dimensions (LxWxH, specify units):

    Lighting Intensity(No of Watts) : 2x36W PL
    Number and type of Lighting (FL/PL/MH) : 2x36w PL
    Age of light bulbs : 6 months, just changed 1 of them
    No. of hours your lights are on : currently 4 hours

    CO2 Injection Rate (bps) : 1-2
    Type of CO2 (DIY/Cylinder) : DIY
    Method of Injection (e.g. Diffusor/Reactor) : reactor

    Liquid fertilisers Used (Product name. E.g. Seachem Flourish) : stopped dosing since green water came
    Fertilization regime (Frequency and amount per dose) :

    Other fertilisers (Product name. E.g. Root Monster) :

    Other additives (Product name. E.g. Seachem Prime) : Nutrafin cycle, seachem paraguard

    Type of Filter (overhead/internal/canister, Product name/model if possible) : Jebao 528 (1200l/hr) canister filter
    When was the filter last washed : last week, using tank water
    Filter media used : ceramic rings, coarse and fine filter wool, glass rings
    When was the media last changed :-
    What was changed :-

    Age of setup (i.e. since initial setup or last major re-do ) : last major redo 3 weeks ago

    Water change frequency : weekly
    Amount changed : 20%

    Water surface movement (None/gentle/turbulent) : gentle
    Circulation (None/gentle/turbulent) : none

    Tank Temperature :27-28degree

    Chemical Properties (Fill what you can)
    -------------------------------------
    KH (dKH): 2
    GH (dGH):
    pH : 6.6-7.4 due to diy co2
    NH4 (ppm):-
    NO2 (ppm):-
    NO3 (ppm): -
    PO4 (ppm):-
    Fe (ppm):-

    Bioload (Number and type of fish and plants)
    ------------------------------------------
    roughly 30 plus fishes, consisting tetras, SAEs
    Describe your problem :
    Green water that reoccur even aft water change and blackout
    i'm ADDicted to this wonderful hobby

  4. #4
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    1) Reduce your number of fishes to twenty plus.
    2) Start dosing your fertilisers.
    3) Reduce your feeding of fishes.
    4) Make sure there's no sunlight.
    5) Buy some fast-growing plants like hornwort, common stem plants and place them in your tank to suck up excess nutrients.
    6) Try not to disturb your filter any furthur.

    Personally, for my green water problem in my non-CO2 4 litre tank, I reduced the feeding and did away with fertilisers and it went away with increased plant growth. I feel you might not have enough plants in your 3 feet tank. The above steps are just a few suggestions to rule out as many possibilities of problems causing that green water.

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