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KH and CO2

Discussion in 'General Plant Topics' started by aquabillpers, Jan 19, 2010.

  1. aquabillpers

    aquabillpers Lifetime Charter Member
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    I have a simple question.

    A 10 gallon aquarium without CO2 injection has a KH of 2 degrees. A certain amount of CO2 from the atmosphere has been absorbed by the water.

    If the KH is increased to 12 degrees, will the number of CO2 molecules in the water remain the same?

    (I'd think that it would, but somewhere I think I read that high levels of carbonates will combine with CO2 and reduce the amount of it in the water.)

    Thanks.

    Bill
     
  2. Philosophos

    Philosophos Lifetime Charter Member
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    It'll stay the same for the most part. There might be some little alterations from the changing viscosity, but nothing like what you see for indication on KH-pH-CO2 charts. Those charts created the misconception of altering CO2 through KH because of some simple misunderstandings on the part of readers.
     
  3. admin_old

    admin_old Administrator
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    Test reply for aquabillpers ...
     
  4. Tom Barr

    Tom Barr Founder
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    The KH and the pH will increase.
    The CO2 should remain the same(none is added or removed assuming the system is equal to the parital pressure of CO2 in the air).

    Regards,
    Tom Barr
    .
     
  5. aquabillpers

    aquabillpers Lifetime Charter Member
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    Testing notification . . .
     
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