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Have a look and see......

Discussion in 'Advanced Strategies and Fertilization' started by PHalas, Dec 10, 2005.

  1. PHalas

    PHalas Lifetime Members
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    ........what you think my dosing strategy should be.
    55gal 6 months established
    2.5 watts PG @ 10,000K 12-14hrs per day
    Pressurized co2 inline diy reactor
    reg washed gravel
    excel dosed daily 1/2 cap off 500ml bottle, flourish root tabs monthly
    heavy fish load
    50% water changes weekly
    plants inc wisteria, cabomba,foxtail,Tiger lotus,spiral & jungle val rotala wallichii, macandra & rotundifolia, reineckii, glosso & a couple of swords maybe a couple of other bits n' pieces.
    Readings 3hrs after water change.
    PH- 6.8
    KH -71.6
    CO2 -19.....ALL PPM
    NO3- 40
    PO4-5.0
    GH 197
    Plants growing at good rate, a little bit of HA on some of the val nothing major, the cleaning crew take care of that. Fish look happy & water is clear.
    "What more could you want??"....you ask.
    Not much, just purchased Qty's of :
    KNO3
    K2S04
    KH2P04
    Plantex CSM
    dry ferts + a nice set of measuring spoons.
    I intend to progress to the EI method, dosing dry. But speculation on my part after doing water tests tells me I do not need to dose NO3 or PO4??
    Not concerned about the results as everything looks normal.
    Any suggestions for a baseline strategy?? maybe crank up the CO2, stop the flourish & water change some of the high #'s out & start again ?? Would prefer a smooth transition to EI not adverse to keeping w/ excel, do I need FE chelate??
    Lots of more of the same old questions I know but kinda got the tank running good but need to switch to dry ferts, as I have a 120gal under construction & would like to start off right with it....Thank you in advance for all valid suggestions & criticism.
    PHalas
     
  2. PHalas

    PHalas Lifetime Members
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    Re: Have a look and see......

    Not worthy of a reply I guess ??? :D
    Took a stab at it anyway, no fish dead & plants look okay.
    Guess I'm on the right track.
     
  3. Tom Barr

    Tom Barr Founder
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    Re: Have a look and see......

    Well, CO2, that will be the real issue.
    Try 30ppm, not 19ppm.

    Hard to do with DIY, but certainly possible, see the internal venturi reactor DIY link on this site.

    If you do the 50-70% weekly water changes, then you will dose the normal KH2PO4, and KNO3 amounts.

    The water changes will remove most things.

    You are asking for trouble with a high fish load and DIY.
    Either get gas and do large water changes, or lower the fish load.

    EI is not the rpoblem when you switch, too little CO2 is or poor mainteance/too many fish.

    Regards,
    Tom Barr
     
  4. aquabillpers

    aquabillpers Lifetime Charter Member
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    Re: Have a look and see......

    He has 2.5 wpg, a lot of growing plants, not much algae, and a heavy fish load. If he cut the lighting by a few tenths and stopped the DIY CO2, it would sound pretty much like a "natural" tank, wouldn't it?

    And since everything seems to be doing pretty well, why change anything?

    Perhaps I'm missing something.

    Bill
     
  5. Tom Barr

    Tom Barr Founder
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    Re: Have a look and see......

    I agree to a certain degree, but he's tired of using Excel.
    He will also have huge problems with a non CO2 approach with that high fish load.

    That is a key element with the non CO2 method, balanced fish load and no water changes.

    Regards,
    Tom Barr
     
  6. aquabillpers

    aquabillpers Lifetime Charter Member
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    Re: Have a look and see......

    The Walstad natural tank approach requires a large fish load, since that is the source of organic nutrients. The idea of having a lot of fish and feeding them heavily against what I had accepted as gospel over the years, but things change and it works.

    The only natural tank that I have that requires dosing (a little NO3 every 2 months) has a low fish load of mainly guppy fry.

    His light level is right at the margin, though.

    Bill
     
  7. PHalas

    PHalas Lifetime Members
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    Re: Have a look and see......

    Thanks for the reply, apologies for misleading you with the Co2 setup.
    I do indeed have a 20lb tank of Co2 hooked to the tank & soon will reach 30ppm- co2. Had to gradually let the fish get acclimated to it as I have only recently got it setup, hence the low CO2 #'s at the time. Presently is up to 24ppm & climbing, will thin out the fish population when my other tank is up & running & will not have to worry about high CO2 levels so much!
    Moving on to EI was the next phase after CO2 rather than just excel, but was concerned about dosing N03 & PO4 because of my high readings.
    Have to date switched to:
    1/8 Tsp K2SO4 3x Per WK
    15 ml CSM+B 3XPer WK
    Did not add NO3 OR pO4 as readings are still
    NO3~ 30ppm
    PO4~4.0ppm
    Figured I will see what the #'s are after next water change.

    Regards PHalas
     
  8. aquabillpers

    aquabillpers Lifetime Charter Member
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    Re: Have a look and see......

    Oh!

    Well, like marriage, CO2 changes everything. :)

    Lots of luck!

    Bill
     

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