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 DIY CO2 Made Easy

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James0816
Captain
Captain
James0816

Posts : 1194
Location : Spotsylvania, VA
Favorite Fish: : Stingrays
Otocinclus Catfish
Kuhli Loaches

DIY CO2 Made Easy - Page 2 Empty
PostSubject: DIY CO2 Made Easy   DIY CO2 Made Easy - Page 2 Icon_minitime1/21/2011, 12:34 pm

First topic message reminder :

I've seen quite a few posts and questions concerning DIY CO2 setups and having issues. I'm not going to say that mine is bullet proof and your results may be different. I can say that so far, this one has never failed me and it lasts a good (4) weeks plus. This is monitored by use of drop checkers. So I thought I would post my write up out here in hopes that it may help people in the future. So here it is.

Do It Yourself CO2 Made Easy

Many hobbyists like to have natural plants in their aquariums. Depending on factors such as lighting and the types of plants you keep, you may need to add CO2 to your system. However, buying a pressurized setup can be a bit costly. In comes DIY (Do-It-Yourself). Even then, some people think that even this method is cumbersome. Well, here we are going to go from start to finish just to show how simple it really is.

Step I: Making the medium (a.k.a Jell-O)
............. Ingredients: 1 pk. Regular 6oz Jell-O. Flavor Optional.
.............................. 2 ½ cups boiling water
.............................. 1 ¾ - 2 cups pure cane sugar
.............................. ¼ cup uncooked rice (optional)DIY CO2 Made Easy - Page 2 MasterIngredients

............. 1) In a large saucepan, fill with water and bring to a rolling boil.
............. 2) Empty (1) 6oz package of Jell-O in a large mixing bowl.
............. 3) When water is boiling, carefully measure out 2 ½ cups.
.............................. a. CAUTION: Contents will be very hot. Be Careful.
............. 4) Pour water in bowl with Jell-O and mix thoroughly until well dissolved.
............. 5) Pour in sugar and thoroughly mix again until well dissolved.
............. 6) Once everything has been dissolved, pour contents in a flat Tupperware container.
DIY CO2 Made Easy - Page 2 JellOMix
............. 7) Cover and place in refrigerator.

* Optional Step *
After about two hours in the fridge, the Jell-O should be starting to set. Test with a grain of rice.
- If it sinks to the bottom, it's not firm enough. Place back in fridge and retest later.
- If rice sits on the top or sinks slightly, it should be good enough. Make sure however that Jell-O is still in a liquid state.
- Sprikle 1/8 cup of uncooked rice over the Jell-O. Using a spoon handle or similiar, gently stir the rice into the Jell-O. It should be free floating within the Jell-O
- Place back in fridge to finish setting up.


Step II: Making the Reactor
............. While the Jell-O is setting up, let’s make the reactor vessels.

............. Materials: 1 64oz Juice bottle (Ocean Spray seems to be best)
........................... 1 20oz Gatorade bottle
........................... 4’ CO2 tubing
........................... GE Silicone I caulk (optional but recommended)
............. Tools:..... Cordless drill w/ bits
........................... Scissors
........................... Case Knife
........................... Needle Nose Pliers
........................... Toothpick
........................... Giant Peep Assistant (optional)
DIY CO2 Made Easy - Page 2 Tools
............. 1) Start by thoroughly cleaning both bottles with hot water.
............. 2) Remove lids. Drill a 3/16 hole directly in the center of the juice bottle lid. Drill two holes in the smaller water bottle lid.
DIY CO2 Made Easy - Page 2 HolesInLids
............. * NOTE * For best results, start with a small drill bit to create a pilot hole. Then using other bits, work your way up to 3/16. The 3/16 size is a fraction smaller than the diameter of the tubing and will provide for a tight fit.

............. 3) Using the case knife, carefully trim any shavings left by the drill bit.
............. 4) Measure about 2’ of tubing.
............. 5) Using scissors cut one end of the tube at an angle.
DIY CO2 Made Easy - Page 2 AngledCut

............. 6) Push the angled end through the top of the cap.
............. 7) Using the pliers, grab the end and carefully pull the tubing the rest of the way through the cap.
DIY CO2 Made Easy - Page 2 PullTubingThrough
............. 8) Cut off the angled end to make a flat cut.
............. 9) Slowly pull tubing out of cap until about ¼” remains in the cap.
............. 10) Repeat steps 5-8 with the opposite end of the tubing into one hole of the water bottle cap.
............. 11) Test fit tubing in water bottle and adjust length if needed. There should be a bend in the tubing.
DIY CO2 Made Easy - Page 2 TestFit
............. 12) Using the remaining length of tubing, repeat steps 5-9 using the second hole on the water bottle cap.
DIY CO2 Made Easy - Page 2 CapsWithTubing
............. 13) Caulk around all three pieces of tubing on the inside of the caps using GE Silicone I caulk only. This is an optional step as the seal around the tubing will be sufficient with the 3/16” hole depending on how you diffuse the gas. I didn’t do this at first until I switched to a glass diffuser, which resulted in higher pressure build up. In one setup, I discovered a leak in the separator bottle so I added the silicone. Caulk around the tubes on the top side as well.
............. 14) Use the toothpick to spread the caulk completely around the tubing to ensure the entire area is covered.
DIY CO2 Made Easy - Page 2 CapWithCaulk
............. 15) Set caps aside and let silicone cure at least 24hrs.

Step III: Time to make gas
............. Now that our Jell-O has set and our reactor vessels have been made, it is time to start making gas… CO2.
............. Ingredients: ½ tsp. Bakers or Brewer’s Yeast divided (¼ tsp. for initial setup / ¼ tsp. to add later)
.............................. 1 tsp. Sugar
.............................. 1 cup hot water
.............................. ¼ tsp. Baking soda
.............................. Air stone (diffuser)
.............................. * NOTE * use a limewood airstone or for best results, use a glass bell or nano diffuser
.............................. * NOTE * I only use Brewers yeast at the moment as I have found it lasts longer than either Fleischman's or Red Star baking yeast. Again, results may vary.
DIY CO2 Made Easy - Page 2 Gasingredients
............. 1) Activate the yeast. In 1 cup hot water, dissolve 1 tsp sugar. Stir thoroughly.
............. 2) While water is still spinning from step 1 (tornado effect as I like to call it), carefully pour in ¼ tsp. of yeast. This will help in prevent clumping.
DIY CO2 Made Easy - Page 2 Yeast1
............. “snow globe” effect shows the yeast activating:
DIY CO2 Made Easy - Page 2 Yeast2
............. 3) While this is activating (appox. 15 minutes), cut Jell-O in small cubes. The small cubes allow for more surface action for the yeast.
............. 4) Add the cubes to the large bottle.
* Optional Step *
- Using the remaining 1/8 cup of uncooked rice, layer it between the Jell-O. Do this by adding a few cubes of Jell-O to the bottle and then sprinkle a small amount of rice on top. Repeat this process until all rice and Jell-O has been added to the bottle

DIY CO2 Made Easy - Page 2 Jelloinbottle
............. 5) After yeast has activated (again allow approx. 15 minutes), add 2 cups hot water to Jell-O bottle.
............. 6) Pour yeast mixture into bottle.
DIY CO2 Made Easy - Page 2 Yeastinbottle
............. 7) Add ¼ tsp Baking Soda.
............. 8) Using hot water, fill bottle until you have approx. 2” free space from the lid.
............. 9) Add remaining ¼ tsp yeast.
............. 10) Fill seperator bottle with water about 3/4 full. Water should be over the end of the curved tubing. This will enable you to see and count the bubbles.
............. 11) Cap both bottles tightly. Remember to allow for a “curve” in the separator bottle.
DIY CO2 Made Easy - Page 2 Finalsetup
............. 12) Within hours, you will start to see generation of CO2.
DIY CO2 Made Easy - Page 2 Finalproduct

That’s all it takes. Now go grow beautiful and healthy plants.

******************
* EDIT *

This write up is a little old now as in the pictures you see a standard water bottle being used for the seperator bottle and a limewood airstone for the diffuser. Both of these have since been replaced with the Gatorade bottle and glass diffusers respectively. I just haven't taken updated pictures to show those.
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fishface30
First Lieutenant
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Posts : 614

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PostSubject: Re: DIY CO2 Made Easy   DIY CO2 Made Easy - Page 2 Icon_minitime5/10/2011, 10:19 pm

the jello recipe works, I use it and I'm on the 3rd week on it.
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Madmax0r
Staff Sergeant
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Madmax0r

Posts : 147
Location : Austin Texas
Favorite Fish: : Texas Cichlids (mainly Herichthys cyanoguttatus), Rock bass, and other native Texas fish



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PostSubject: Re: DIY CO2 Made Easy   DIY CO2 Made Easy - Page 2 Icon_minitime5/11/2011, 6:20 pm

thats really cool, I would think the yeast would have a harder time getting around to eat up all the sugars in a jello... you can do this with cornmeal sugar and yeast as well if you wanted to, its just sour mash for making moonshine or "Corn whiskey"
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James0816
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Captain
James0816

Posts : 1194
Location : Spotsylvania, VA
Favorite Fish: : Stingrays
Otocinclus Catfish
Kuhli Loaches

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PostSubject: Re: DIY CO2 Made Easy   DIY CO2 Made Easy - Page 2 Icon_minitime5/12/2011, 6:28 am

Madmax0r wrote:
thats really cool, I would think the yeast would have a harder time getting around to eat up all the sugars in a jello.

That is actually the good part about the jell-o. As it dissolves, it releases more sugars to the yeast. Thus making the mix last longer.
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Madmax0r
Staff Sergeant
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Madmax0r

Posts : 147
Location : Austin Texas
Favorite Fish: : Texas Cichlids (mainly Herichthys cyanoguttatus), Rock bass, and other native Texas fish



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PostSubject: Re: DIY CO2 Made Easy   DIY CO2 Made Easy - Page 2 Icon_minitime5/12/2011, 5:08 pm

ah, genius... its like burning a candle instead of a glass of gasoline


wonderful idea
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michael09
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michael09

Posts : 18
Location : texas ,keller
Favorite Fish: : Freshwater shrimp..

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PostSubject: Re: DIY CO2 Made Easy   DIY CO2 Made Easy - Page 2 Icon_minitime10/8/2012, 12:34 pm

Nice .
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PostSubject: Re: DIY CO2 Made Easy   DIY CO2 Made Easy - Page 2 Icon_minitime

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