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DIY Co2

Discussion in 'Freshwater Equipment, Products, & DIY' started by Kengel, Mar 21, 2010.

  1. Kengel

    Kengel AC Members

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    Could it be as simple as mixing ingredients in a 2 liter bottle and running tubing into the tank? I don't know much about this so this so it may seem like a dumb question =/.
     
  2. RodInCALIFORNIA

    RodInCALIFORNIA EBAY ADDICT !

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    might have better luck with this question in the "planted" section.
     
  3. Jspigs

    Jspigs There is always more to learn

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    You need something to diffuse the co2. The pointy end of a chopstick shoved into the tube with a little of the chopstick sticking out of the tube works well.
     
  4. J double R

    J double R The Devil

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    This is a pretty basic diagram of a DIY CO2 setup. You can choose to have 1 bottle, or two. The smaller bottle is a "bubble counter" or "separator", that you fill with water above the input line, and out the line to the tank, which stays above the water line. This allows you to monitor true flow outside the tank, and if any yeast mixture leaks through the tubing, it is deposited here, instead of in your tank. In the tank, you can use your choice of diffuser, whether it is a chopstick as mentioned above, a limewood airstone, or a reactor setup. the little nubby part (labeled "3") is a backflow preventer, or checkvalve, which prevents your tank water from siphoning back into the bottle. that is a must.
    generatorcopycs5.jpg

    generatorcopycs5.jpg
     
  5. Kengel

    Kengel AC Members

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    That diagram helps a ton, I think I'll do it this week. Could anybody describe what goes into a yeast mixture?

    Thanks for all the replies! :D.
     
  6. lethalcustoms00

    lethalcustoms00 gearhead extrordinare

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    i use regular activated yeast in mine. but i also use jello instead of just sugar too.
     
  7. Jspigs

    Jspigs There is always more to learn

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    Here is a good walkthrough (not mine): http://www.aquaticplantcentral.com/...cts/14453-diy-co2-guide-pictures-recipes.html

    Instead of the juice container mentioned in the link I used a two liter bottle and it works great with my chopstick diffuser.

    Also I did not make the bubble counter mentioned in the link, I just skipped that part.
     
  8. dholowiski

    dholowiski AC Members

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    These type of setups scare the heck out of me. No matter how much planning you do, there is always the possibility of the bottle getting plugged and exploding (yuck), having all of the water siphon out of your fish tank (squish) or having the high alcohol mixture from the bottle empty into your tank.
    It may cost way more, but I got a pressurized CO2 system that runs off of a paintball tank, and I can finally sleep at nights.
     
  9. J double R

    J double R The Devil

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    With proper safety interlocks, you won't have any higher risk of water siphoning out of your tank as any other time you're using airline in the tank, nor will you have to worry about the mixture getting in the tank, if you build a proper gas separator.

    I'm all about pressurized CO2, but I find DIY CO2 to be fun and somewhat fulfilling.
     
  10. PAL

    PAL AC Members

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    I have to disagree, I believe that pressurized pros beat the diy pros. We can discuss these if you would like
     

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