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Ferts for a Plant Filter....?

Discussion in 'CO2 Enrichment' started by Naja002, Oct 18, 2006.

  1. Naja002

    Naja002 Prolific Poster

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    Just needing to know how to add ferts for a setup that has no plants except for a 30g plant filter full of Hygro polysperma....?

    The setup is the main tank (40g, no Plants), Sump (40g, no plants), Plant filter(30g, Plant-only).

    I have fully planted tanks and I understand the overall fert deal. What's confusing me is how much P and K and micros to dose for the plants to remain healthy and remove nitrates. If it was Just a 30g planted tank: I would dose 2ppm of P and about 20ppm of K. BUT its a 30g plant filter inside a 110g system :eek: ----So, how would I dose this?

    TIA
     
  2. Tom Barr

    Tom Barr Founder
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    You can dose when you do the water changes directly to the plant filter.

    There's no flow for a few minutes, the longer, the better.

    I'd add about 5-10ppm of KNO3 once a week.
    1 ppm of PO4
    10mls of Traces.

    Etc...........

    You'll note you are after a balance of low nutrients, but not so low the plants suffer. So that is a balance.


    Regards,
    Tom Barr
     
  3. Naja002

    Naja002 Prolific Poster

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    Ok, so I'm assuming that you are saying dose the entire 110g to 1ppm of P, etc, Correct?
     
  4. Tom Barr

    Tom Barr Founder
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    No, just the 40 gal with the weeds.

    You will have a good sized fish load in the other tank right?
    That should feed the plant filter.

    You can add a bit more ferts for the plants there, but not that much, the rest of the tank will have no draw of nutrients.............

    Regards,
    Tom Barr
     
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