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Results 1 to 10 of 15
  1. Default My DIY Co2 write up!


    0 Not allowed!
    My Co2 system has worked great. It's been producing co2 for twelve days now. I haven't had any problems with the yeast/sugar water getting into my tank as i have a gas diffuser for that reason. As an added caution.

    What you need are: 2 liter pop bottle, another bottle for the gas diffuser ( i used a 32 oz. gatorade bottle for the wide cap), a 20 oz. pop bottle, a pair of scissors, a hot glue gun, some air line tubing, and that little blue thing which is a flow regulator (only lets air flow one way), drill with bit smaller in diameter than the air line, suction cup.

    You need to drill 1 hole in the cap of the 2 liter pop bottle. Drill two holes in the gatorade bottle cap. Drill one hole in the 20 oz. pop cap.These holes will be smaller than the diameter of the air line. Next cut the 20 oz pop bottle in half to make the bell where the Co2 will go. Next cut the airline into desired lengths. Then cut the ends of the lines at an angle about a 1/2" long. Now insert the angled end of the tube into the pop cap and pull. Cut of the angled part. I cut this one about 1/2 inch long. Use the hot glue on the outside of the pop cap to seal the hole and hold the air line in place. Cut this line in half and put the flow valve in. Take the other end of the air line and insert it into one of the holes in the gatorade cap and pull. Cut of angled part. I made this line about 3-4 inches long so it will be under the water level of this bottle. Now insert the other air line into the second hole of the gatorade cap and pull. Cut of angled part. I made this one about 1/2 inch long. Glue top of cap to seal holes and hold tubing. Insert the other end of this line into the 20 oz pop cap. Cut off angled part. I left about 1/2 inch long. I did not glue this one. Put caps on appropriate bottles. Cut hole in bell for the suction cup. Finished product will look similar to my pics.

    Fill gatorade bottle with water until the one air line that comes from the yeast solution is under water. This serves as gas diffuser/ bubble counter.

    The flow valve will keep any access water getting into the yeast solution which will make it bubble over.

    Co2 recipie:
    3 cups warm water
    2 cups sugar
    1/2 tsp yeast
    1/2 cup hot water from tap

    You need to put three cups warm water and two cups sugar into 2 liter bottle. I then shook this to mix. Add the yeast to the hot water and stir to rehydrate the yeast then pour into the sugar water. I then shook again to mix yeast and sugar water.

    Pic One
    Pic Two
    Pic Three
    Last edited by country_boy454; 03-25-2008 at 10:48 PM.
    20g long 84w, fluorite, planted, 5 Habrosus Corys, MTS, pair of Clown Pleco (L104)
    20gal tall: home to 10 brevis. Letting them pair off then will put the rest into the 55.
    55g empty

  2. #2

    Default


    0 Not allowed!
    Nice write up dude!
    CORRECTED video of my fish. This link works. For sure. Really.

    Tanks:
    20g long: 4 panda cories, 1 honey gourami, 1 apistogramma borellii, 1 male cacatuoides
    20g High: 3 bolivian rams, 12 rasboras
    8g hex: empty
    5g: empty

  3. Default


    0 Not allowed!
    why do we need the second bottle (32 oz. gatorade bottle with wide cap). is it not possible to directly connect the line from the 2 liter pop bottle (with mixture) to the tank (with an airstone)? Whats the purpose of a diffuser?

  4. Default


    0 Not allowed!
    A diffuser allows big bubbles to be trapped and release smaller bubbles that are more easily dissolved into the water.....
    75 Gallon South Cichlid: Tiger Oscar and Jack Dempsey

    55 Gallon GT Tank: 1 Male GT and 8 Giant Danio

    20 Gallon Long: Waiting for eco-complete planted red substrate that has been delayed 2 weeks due to weather.

    "Don't buy fish at Wal-Mart then go to your local fish store for help when they die. Goto your local fish store first and get educated. It will save you money and many many fishes lives."

  5. Default


    0 Not allowed!
    I understand that in the second bottle (the diffuser) the line from the first bottle (mixture) is let into the water level so that the bigger bubbles dissolve. But the line leading to the tank is at surface level, so how will the bubbles reach the tank? I am confused about this part.

  6. Default


    0 Not allowed!
    Great writeup. I've been thinking of starting my own DIY CO2 setup for a bit now. With 60 watts over a 20 gallon long, do you think I need CO2 or should I stay away from it unless I get more light?

  7. #7

    Default


    0 Not allowed!
    The second filter acts as a "filter" to catch any extra mixture that might make it through the line, and as a bubble counter.
    Money can't buy happiness, but it sure can pay the rent.

  8. #8

    Default


    0 Not allowed!
    The second one traps the bulbbles so they stay in contact with the water until they dissolve, as opposed to the airstone which releases the bubbles up, leaving little time for the bubbles to dissolve.
    CORRECTED video of my fish. This link works. For sure. Really.

    Tanks:
    20g long: 4 panda cories, 1 honey gourami, 1 apistogramma borellii, 1 male cacatuoides
    20g High: 3 bolivian rams, 12 rasboras
    8g hex: empty
    5g: empty

  9. #9

    Default Thinks that is what I need to do.


    0 Not allowed!
    I have the 2 liter bottle, but need a second to make sure no solution can make it into the tank. The second bottle will trap any moisture, just allowing pure co2 to enter the tank.... Yep, definately will have to upgrade.
    75 gallon planted tank with discus, GBR's and cardinals

    135 gallon saltwater FOWLR work in progress and desperately need help

  10. Default


    0 Not allowed!
    The "bad" thing about this type of a setup is that if the solution makes it's way into the tank it can and will kill all your fishies. That is why I added the second bottle to catch any overflow that might happen.
    20g long 84w, fluorite, planted, 5 Habrosus Corys, MTS, pair of Clown Pleco (L104)
    20gal tall: home to 10 brevis. Letting them pair off then will put the rest into the 55.
    55g empty

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