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Co2 Checker

Discussion in 'Are you new to aquatic plants? Start here' started by dannyfish, Sep 20, 2010.

  1. dannyfish

    dannyfish Prolific Poster

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    I have a Co2 checker in my tank...
    i noticed that the solution is kind of smelly when i changing the solutions
    Is it normal?

    the checker always show blue although i am having 4 DIY Co2 1.5L bottle in my 55 litres tank..
    Wondering is my co2 is still lacking after install so many bottle of Co2.....
     
  2. Tug

    Tug Lifetime Charter Member
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    • It could be that the DC is wrong.
      You need to use a 4 dKH solution in your DC. Do not use water from the tank.
    • Or the DC is correct, and the CO2 from your yeast rector is not getting to your diffuser. In which case you have an air leak or a blocked line.
    • And/or the diffusion method is inadequate and the CO2 is just gassing off.

    http://www.qsl.net/w2wdx/aquaria/diyco2.html
     
  3. dannyfish

    dannyfish Prolific Poster

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    And/or the diffusion method is inadequate and the CO2 is just gassing off.
    ---------------------------------------------------------------------------------------------

    As for the diffusing of Co2, i using wooden air stone...fine bubble is produced (see pic) i got 4 of them in my tank at different area. I believe/guess it should be adequate diffuse right? If no then i also don't know what to do already!!! "surrender"

    photo 2..JPG
     
  4. Tug

    Tug Lifetime Charter Member
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    The greater your plant density the greater the demand for CO2 and nutrients will become. This is also true when you have high levels of light, more demanding plants. It is good to remember an increase to your levels of CO2 will also increase the plants uptake of nutrients, if the supply of CO2 is increased even slightly, the resulting increase in growth will increase the demand for all the other nutrients and another nutrient, the next lowest in availability, will become limiting. Liebig's Law of the Minimum

    Your situation sounds as if the diffusion method is insufficient. It is extremely important when adding CO2 that the levels remain consistent (pressurized systems are great for this) and that the CO2 circulate throughout the tank. Your wooden air stone will bump up against both of these issues. With age they get dirty, slowly reducing the flow of CO2. More relevant to your situation, if the bubbles are heading for the surface, is improving the flow of CO2 around the tank.

    One solution would be to add a small powerhead to move the bubbles across the tank, dispersing the CO2 and giving it time to dissolve. This will at least address one of the flow issues.

    I suggest you find a powerhead/needlewheel modification that you like. The more consistent and improved circulation of CO2, the better. There are a lot of powerhead modifications out there. A modified Duetto Multi-Filter is the one I use, BUMP. http://www.barrreport.com/entry.php/2-DIY-CO2-reactor-surface-skimmer
     
    #4 Tug, Sep 21, 2010
    Last edited by a moderator: Sep 21, 2010
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