This site is supported by the advertisements on it, please disable your AdBlocker so we can continue to provide you with the quality content you expect.
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. We are after as many aquarium plant images that we can get, doing so will assist us in completing the aquarium plant database.

    https://barrreport.com/threads/aquatic-plant-images-wanted.14374/
    Dismiss Notice

Surface agitation ; O2 & CO2

Discussion in 'CO2 Enrichment' started by ibanezfrelon, Aug 14, 2010.

  1. ibanezfrelon

    ibanezfrelon Guru Class Expert

    Joined:
    May 18, 2010
    Messages:
    205
    Likes Received:
    0
    Local Time:
    2:03 PM
    I've noticed that when i increase surface agitation and break a surface a lot , i can turn up the co2 a lot more than when i only wrinkle it a little..
    Ok , that's nothing new but , would it be fair to say that plants get more co2 this way , more bubbles , even though it goes out fast when it reaches the (broken) surface?
    And fish get more o2 this way right?
    So is a lot of co2 with a lot of surface agitation better than a little less co2 and less agitatioin?
    Downside would be often refilling of the co2 bottle which i don't mind as i have a 20kg bottle.

    Am i missing something here?
     
    #1 ibanezfrelon, Aug 14, 2010
    Last edited by a moderator: Aug 14, 2010
  2. hbosman

    hbosman Guru Class Expert

    Joined:
    Oct 22, 2008
    Messages:
    277
    Likes Received:
    0
    Local Time:
    2:03 PM
    It's been said that 90 % of the CO2 we inject is not used by the plants. I personally like a little surface agitation. It adds O2, it breaks up surface scum and I like the look of a rippling surface. Since I use a split impeller mod for diffusion, it is obvious when I increase the bubble rate that the dispersion is more consistent throughout the tank.

    I used to run CO2 24/7, now for the last 6 months I've used a solenoid to switch CO2 on with the lights. I've minimized surface agitation and suffered more surface scum, and increased surface agitation for O2 and scum reduction. I've used inline PVC reactors, inline diffusers, ceramic diffusers and split impeller mods. I can't say that any of these methods were dramatically better or worse for saving money on CO2 usage. Since I use paintball bottles, not the cheapest way to use CO2, it would be obvious if any of these methods saved money. Differences could be expressed in $1.50 per month savings for the more efficient set ups. I still write down the date when I swap bottles just so I would be aware If I developed a leak somewhere.

    Anyway, what I'm driving at is adjust the surface agitation for the benefit of fish and appearance and adjust CO2 to the previously advised levels. The cost difference is really insignificant.
     
  3. Left C

    Left C Lifetime Members
    Lifetime Member

    Joined:
    Sep 26, 2005
    Messages:
    2,510
    Likes Received:
    0
    Local Time:
    2:03 PM
    Very good point!
     
  4. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

    Joined:
    Jan 23, 2005
    Messages:
    18,648
    Likes Received:
    556
    Local Time:
    2:03 PM
    +1, this is what I do and have ALWAYS done.

    Fish come first.

    Regards,
    Tom Barr
     
Loading...

Share This Page