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CaNO3

Discussion in 'Advanced Strategies and Fertilization' started by PK1, Oct 12, 2005.

  1. PK1

    PK1 Guru Class Expert

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    Has anyone ever used CaNO3 (I think it's actually Ca(NO3)2 ) to supply NO3 and Ca at the same time? I would be curious to know how it works and what it does to GH or KH.
     
  2. Tom Barr

    Tom Barr Founder
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    Re: CaNO3

    It only affects GH.
    Folks have used it, although not extensively for well over 10 years.
    Most use CaSO4 or CaCl2/MgSO4 for GH and KNO3 for NO3.

    Regards,
    Tom Barr
     
  3. fishface

    fishface Guest

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    Re: CaNO3

    is there any prrobs with the Cl part of CaCl2? i heard it's not good for a planted tank.
     
  4. PK1

    PK1 Guru Class Expert

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    Re: CaNO3

    I know people have used it but I have no feedback on it. I may give it a try myself at some point, do you know what % is Ca vs. NO3 so I can calculate the doses?
     
  5. Tom Barr

    Tom Barr Founder
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    Re: CaNO3

    It might cause subtle issues in soft waters.
    But CaCl2 never seemed to be an issue.

    You could say the same thing about KCL which folks have a long history of using liberally.

    Still, K2SO4, CaSO4 work well and dissolve slower, but not that much slower to be an issue.

    Regards,
    Tom Barr
     
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