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Thread: What NPK composition ?

  1. #1
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    What NPK composition ?

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    Hi

    may i know what is the NPK composite tt is suitable for a planted tank when i get those slow release fert/nutrient ball/tab ?

    thks

  2. #2
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    What NPK composition ?

    Hi

    may i know what is the NPK composite tt is suitable for a planted tank when i get those slow release fert/nutrient ball/tab ?

    thks

  3. #3
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    What NPK composition ?

    Hi

    may i know what is the NPK composite tt is suitable for a planted tank when i get those slow release fert/nutrient ball/tab ?

    thks

  4. #4
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    What NPK composition ?

    Hi

    may i know what is the NPK composite tt is suitable for a planted tank when i get those slow release fert/nutrient ball/tab ?

    thks

  5. #5
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    Reference this discussion at http://fins.actwin.com/aquatic-plant.../msg00317.html. They listed the following:

    Code:
    Here are the ratios of elements in typical plant tissue from a table
    given by George from adapted from from the Feb, 1988 "Today's Aquarium,
    the International Magazine of the Optimum Aquarium", ("Aquarium Heute"
    in German), published by Aquadocumenta Verlag GmbH. Units are mg/Kg.
    
    Oxygen         48,000
    Carbon         36,000
    Hydrogen        6,000
    Potassium       3,600
    Nitrogen        3,200
    Sulphur           660
    Calcium           650
    Phosphorus        460
    Magnesium         210
    Iron               15
    Trace elements     10
    It seems the ratio of N-P-K is about 7:1:7.
    Not sure if I am correct, but I would get something close to this ratio. But also have to consider what are the NO3 and PO4 levels in your tank.
    koah fong
    Juggler's tanks

  6. #6
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    hi
    would like to add on to this article
    different plants have different ratios of elements
    some plants like to concentrate certain elements more than others
    i wouldn't be too overly concerned with NPK for fert

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