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EI Dosing Opinion

Discussion in 'Advanced Strategies and Fertilization' started by imatrout, May 23, 2005.

  1. imatrout

    imatrout Prolific Poster

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    Here's the EI dosing regime I implemented. I'd appreciate if you all think this looks right:

    Tank: 150 gal. dosed as 130 gallons of water
    Light: 4X 96 watt PC (2.56 wpg)
    Photo Period: 14 hr at 2 X 96 watts and 5 hrs at 4 X 96 watts
    KH = 16
    Ph = 7.3
    CO2 = 24 ppm



    KNO3 = 1.5 tsp 4x per week
    KH2SO4 = .48 4x per week
    MGSO4 = .48 1X per week at water change

    Flourish = per instructions
    Flourish Iron = per instruction
    Flourish Excel= per instruction

    Am I on the right track?

    Thanks all!
     
  2. Vladimir Zhurov

    Vladimir Zhurov Lifetime Members
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    Re: EI Dosing Opinion

    imatrout,

    I noticed that your CO2 concentration is calculated based on KH and pH. Or is it just a coincident and you have measured it in some other way?
    What I am suggesting is a) are you sure about your 24 ppm of CO2? b) what is pH of water when you do NOT inject it?

    Other than that why do you do not add any phosphate?

    Using Excel on such a big tank is quite costly (from my point of view, of course) and you should be good with just CO2 injection.

    Regards.

    Vladimir.
     
  3. imatrout

    imatrout Prolific Poster

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    Re: EI Dosing Opinion

    Thanks Vladimir!

    My Ph out of the tank is 8.1 and the CO2 injection causes it to drop to 7.2 -7.3.

    I don't add phosphates because I have a moderate to heavy fish and feeing load that adds phosphates...I hope enough. Oh and by the way, my tank is medium to heavily planted. That is, I've stocked the tank wiyh lots of plants and when the plants grow, it will be very heavily planted.

    Thanks again
     
  4. Tom Barr

    Tom Barr Founder
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    Re: EI Dosing Opinion

    No, you do not have enough PO4. Fish food alone will not add enough.

    Add KH2PO4.
    Like an 1/4 teaspoon 4x aweek.

    K2SO4 can be added, I'd add it only after a water change, but if you are adding KNO3.........you do not need it.

    MgSO4, add only after a water change, a teaspoon should be fine.

    I'd suggest lowering the KNO3 dosing to 1 teaspoon 4x a week since the fish load is high.

    Regards,
    Tom Barr
     
  5. imatrout

    imatrout Prolific Poster

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    Re: EI Dosing Opinion

    Sorry,

    Got my chemistry wrong. I am already adding KH2PO4, not KH2SO4.
     
  6. imatrout

    imatrout Prolific Poster

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    Re: EI Dosing Opinion

    I've adjusted down per your recommendation. I will resit the urge to use a test kit all week until water change!

    Thanks All!
     
  7. Tom Barr

    Tom Barr Founder
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    Re: EI Dosing Opinion

    It's fine to test all week, just be careful what conclusions you draw and to run the test out all the way through.

    Regards,
    Tom Barr
     
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