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What kind of nutrient shortage is this?

Discussion in 'Aquatic Plant Fertilization' started by joshua1977, Nov 18, 2013.

  1. joshua1977

    joshua1977 Junior Poster

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    Dear all,

    I need some advice on which part of the PMDD fertilizer I should increase.
    My tank specifications:

    240 l.
    Light: 162 Watt T-5, Arcadia plant pro
    DIY CO2, approx 3 bubbles per second

    I can currently not provide any water values since I do not have any water tests.

    I have recently been experiencing that my Glossostigma leaves go white/milky as in this picture:
    http://tinypic.com/view.php?pic=2gudzdf&s=5#.UoqGMeJGYyg

    Here is a picture to show the amount of plants I have:
    http://tinypic.com/view.php?pic=b81yea&s=5#.UoqGJOJGYyg

    My PMDD dosage (maybe a bit odd from how you are used to dose)

    I mix below in 400 ml of water, then I dose 14 ml of this mixture daily:

    33 g - MgSO4
    14 g - K2SO4
    6 g - KNO3
    15 g - Tenso cocktail - Fe, B, Ca, Cu, Mn, Mo and Zn

    I would like to keep dosing daily since I keep Discus and they become very nervous when doing 50% water changes, which I understand
    has to be done when dosing PMDD on a weekly basis (to reset the water values)

    As you can see I dont dose any KH2PO4, is this the problem?

    I would really appreciate your comments and advise.

    Regards

    Joshua
     
  2. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

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    Try dosing some KH2PO4 and see.
    Dose in the AM, come back later that day and see the plants.
     
  3. Tom Barr

    Tom Barr Founder
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    Try dosing some KH2PO4 and see.
    Dose in the AM, come back later that day and see the plants.
     
  4. joshua1977

    joshua1977 Junior Poster

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    Thank you for your reply, I did dose approximately 3 g yesterday, what amount of KH2PO4 is safe to dose?


    Regards

    Joshua
     
  5. joshua1977

    joshua1977 Junior Poster

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    Bga

    That means I dosed 3 g to the 400 ml water solution with fertilizers, I did not dose 3 g directly in to the Aquarium water...

    Regards

    Joshua
     
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