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Emergent Plants and CO2 Usage

Discussion in 'CO2 Enrichment' started by PhillyB, Jun 17, 2007.

  1. PhillyB

    PhillyB Prolific Poster

    Dec 27, 2006
    Likes Received:
    Local Time:
    8:42 AM
    Hello All!

    I have several plants which I have allowed to grow above the water line in my aquarium. Does the fact that these plants are now growing above the water line affect their utilization of CO2? Are the parts that are above the water able to absorb CO2 from the air and transport this to other parts of the same plant?

    I don't plan on doing this, but... could one potentially lower CO2 injection if all the plants in an aquarium are at least partially above the water (assuming they can transport the CO2 around)?

    Thanks for your knowledge!
  2. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

    Jan 23, 2005
    Likes Received:
    Local Time:
    8:42 AM
    Yes, they can and will use the CO2 there first.
    It also adds more O2 to the sediment.

    They act like pipes.
    You do not need any CO2 if they are above or at the water's surface.

    Tom Barr

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