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Ph Changes?

Discussion in 'Fish for Planted Tanks' started by Gabcas, Feb 7, 2019.

  1. Gabcas

    Gabcas Junior Poster

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    hello, I used to have a non co2 tank and I remember that the pH was very changeable when the lights went on the pH rose to 8 and when they turned off it dropped to 7 or 7.5, my question is? Does this really affect a fish? Or the fish can live happily in a non co2 tank? Thanks
     
  2. FxFocus

    FxFocus New Member

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    I've come to the conclusion that within reason the actual PH doesn't matter so much as the reason why it's at a particular level.
    Again within reason a rapid change in PH due a change in dissolved CO2 is not harmful as many will attest.
    I would think it safe to assume that since your PH changed after lights out it was due to an increase in dissolved CO2.
     
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