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Fertilization Advice

Discussion in 'Aquatic Plant Fertilization' started by xplode, Mar 15, 2010.

  1. xplode

    xplode Junior Poster

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    I need advice on how to fertilize my 80 liters tank.
    I use liquid fertilizers and per ml, the values are as follows:

    KNO3 - 1ml = 3.125 ppm (N) / 1.58ppm (K)
    KH2PO4 - 1ml = 0.625ppm (PO4) / 0.262ppm (K)
    KCL - 1ml = 1.25 ppm (K)

    Plants: Blyxa japonica, Java Fern Mini, Marsilea hirsuta, Xmas Moss, Cryptocoryne Willisii
    CO2 (Pressurized): 1bps
    Lightning: 48w T5

    How much should I use, using the EI method 3xWeek?
    Can i also use Flourish Excel? How much?

    Best Regards
     
  2. Philosophos

    Philosophos Lifetime Charter Member
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    Your light is going to be challenging; I'd suggest trying 24w with 48 watt bursts if CO2 becomes an issue.

    If those doses are daily, you should be doing just fine. For EI I'd double the dosing up, reduce it to 3 days, and get yourself some CSM+B. If you like stock solutions, mix up 15.3g CSM+B in a 1L solution of DI H2O along side about 10-20ml of 10% HCl or equivalent depending on the % of the HCl you can find. Add the HCl to 900ml DI H2O, always acid into water, wait 5 minutes, then add the CSM+B and stir until dissolved.
     
  3. xplode

    xplode Junior Poster

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    Thanks for your reply,

    Just for reference, the lightning is 2x24W T5 (6700k/8000k) and the tank is 35cm tall, with 5cm of substrate (front), 8cm (back).
    So maybe the lighting is sufficient for the height... do you agree with me????

    And what about FLourish Excel, can i use it as a complement?

    Best Regards
     
  4. Philosophos

    Philosophos Lifetime Charter Member
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    It sounds like your tank is about the same dimensions as a north american standard 20 gallon tank. Height has little to do with it if you have decent water clarity, if anything the light tends to lens off the glass of a filled tank more to reflect a greater quantity of light back into the tank compared to when it's empty. You can probably make 48w work all day long if you put a lot of time and effort into your CO2; I started with comparative levels of light and had to dedicate a lot of time to my little tank. It's a steep learning curve, but it works.

    Excel should be just fine every day at levels given on the label for after a water change. The exception would be if you xmas moss happens to be sensitive; I've heard of/seen it go both ways. Try testing it first; keep a bit of the moss in 1L of tank water and add excel daily for a week or two. Keep another sample in another container of the same size, don't add excel. If the one with excel in it dies off, then it's probably sensitive. Some people have gotten by with sensitive moss using lower doses.
     
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