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If i use air pump, will the content of co2 go down?

Discussion in 'CO2 Enrichment' started by TetraLover, Oct 7, 2008.

  1. TetraLover

    TetraLover Junior Poster

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    I am keeping some cherry shrimp in my non co2 tank.
    (the number of them is about 30)
    And i am using air pump to add to oxygen into the water.
    But now I am going to make the "diy co2",
    if i keep using air pump, will the content of co2 go down?
    And will the "diy co2" becomes useless?
    Also i want to ask,
    is the air pump that i must use to keep my shrimp?

    Thank you :)
     
  2. abcemorse

    abcemorse Prolific Poster

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    As far as I know, the air pump will only affect CO2 to the extent that it increases surface agitition and therefore the degassing rate. Shouldn't be much to worry about.
     
  3. VaughnH

    VaughnH Lifetime Charter Member
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    DIY CO2 barely gives enough CO2 at best, so anything that increases the rate of loss of CO2 at the surface, as an air pump does, will make the CO2 concentration drop excessively. Cherry shrimp will live and reproduce under very bad conditions, such as inside a canister filter, so adding extra oxygen isn't necessary. You can use the filter return flow, aimed to slightly ripple the water surface, to make sure there is always enough oxygen in the water. Or, you can use a timer to turn on the air pump only during the lights off period, when CO2 isn't needed by the plants. Personally, unless the tank is a very small one, I wouldn't do anything that might reduce the amount of CO2 in the water.
     
  4. TetraLover

    TetraLover Junior Poster

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    Thank you abcemorse and VaughnH !
    I think I know what i need to do.
    I will buy a timer to control the air pump which opens at night.
    I hope that shrimps won't die.
     
  5. abcemorse

    abcemorse Prolific Poster

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    shows how far I know...lol
     
  6. VaughnH

    VaughnH Lifetime Charter Member
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    No, what you posted is right, but only for pressurized CO2, or when you have abundant DIY CO2. Most people barely have enough CO2 with DIY, so it is only then that losing any of it can be losing too much of it.
     
  7. abcemorse

    abcemorse Prolific Poster

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    Gotcha...thanks for the vote of confidence! :)
     
  8. Tom Barr

    Tom Barr Founder
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    See non CO2 planted tank methods for a nice shrimp tank.
    Cherries lives for the entire length of the tank's existence(2 years) with 2 water changes.

    And it looked decent and was the easiest nano to take care of*(CO2 + Nano+ fish/critters= bad idea). Non CO2 methods are more stable and the plant growth is slow. This is more important as the tank size is reduced and you try and balance the input/output.

    Larger tanks are always more forgiving there.

    Regards,
    Tom Barr
     
  9. TetraLover

    TetraLover Junior Poster

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    My success of diy co2
    [​IMG]
     
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