What are your DIY CO2 Recipes? - The Planted Tank Forum
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post #1 of 18 (permalink) Old 12-24-2011, 03:58 AM Thread Starter
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What are your DIY CO2 Recipes?

So ive pretty much have everything to start my DIY CO2 on my 15 Gallon planted aquarium, and I have never really done this. So I need your guys advice, and suggestions.
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post #2 of 18 (permalink) Old 12-24-2011, 06:15 AM
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for my recipe:

1L water
2 cups sugar
1/2 teaspoon yeast
i have 2 sets of it for my 10g before and its doing great and consistent at around 2 bps. good luck to your DIY
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post #3 of 18 (permalink) Old 12-24-2011, 12:40 PM
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Mine is
3/4 cup sugar
7 cups water
1 tsp baking yeast.

#1. add sugar to 6 cups of hot water from tap into one liter bottle..Shake till desolved

#2. Then in my measuring cup add 1 cup of 80 deg water. I stir in yeast with fork until foams
let it stand for 20 min to hydrate yeast mix.
add to bottle and your ready to go.
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post #4 of 18 (permalink) Old 12-24-2011, 01:37 PM Thread Starter
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How long do these last for? and does it matter if your bottle doesnt stay warm
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post #5 of 18 (permalink) Old 12-24-2011, 01:58 PM
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Will last for a few weeks tops..
I do have a small towl wrapped around the bottle to help keep it a bit warmer with one under the bottle to keep off the cold wood floors.
I keep my house in the 60's in the winter and she still keeps going.
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post #6 of 18 (permalink) Old 12-25-2011, 05:47 PM Thread Starter
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So the recipe I am using is

1.5L water
1.5cups sugar
1tsp yeast
1tsp baking soda

I heard adding a little baking soad will help keep the ph level the same.
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post #7 of 18 (permalink) Old 12-27-2011, 10:15 PM
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Very cool question! I am also interested in hearing about everyone's experiences with various DIY C02 recipes!

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post #8 of 18 (permalink) Old 12-28-2011, 03:07 PM
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I don't have any baking soda to use but I have it on my list next time I go to the grocery store. I will add a bit to my mix and see what happens?
Don't think it can hurt..............................>
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post #9 of 18 (permalink) Old 12-29-2011, 05:30 AM
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Quote:
Originally Posted by picotank View Post
I don't have any baking soda to use but I have it on my list next time I go to the grocery store. I will add a bit to my mix and see what happens?
Don't think it can hurt..............................>
you won't notice any difference..it's just a buffer and will just stabilize the C02 production rate.
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post #10 of 18 (permalink) Old 12-29-2011, 12:20 PM
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Quote:
Originally Posted by williamsonaaron View Post
you won't notice any difference..it's just a buffer and will just stabilize the C02 production rate.
Stabilize is good..........no?
My formula works great the way it is but I'm into trying different ones out.
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post #11 of 18 (permalink) Old 12-29-2011, 01:27 PM
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My recipe is:
#1 load my aluminum cylinder into my pickup and drive to "Minneapolis Oxygen"
#2. Talk to Scott and use my company's name so I get the corporate discount
#3. Pay $12 to get my 20lb tank refilled
#4. Bam, done, and I don't think about my CO2 again for another year and a half.

:-P

What fun are forums if there isn't a wise-guy pestering?? ;-)
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post #12 of 18 (permalink) Old 12-29-2011, 02:27 PM Thread Starter
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Filling up your cylinder doesnt quite count as DIY dont you think? hahaha but hey if your filling it up yourself i guess that counts =P
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post #13 of 18 (permalink) Old 01-12-2012, 07:22 AM
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Guess there weren't that many different recipes after all!

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post #14 of 18 (permalink) Old 01-12-2012, 11:36 AM
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The best thing you can do if you need more co2 out of diy is keep the yeast bottles warm, at 92'f they produce a ton of co2 but only for 9-10 days

but my formula is
2 cups sugar
half a 2l of hot water
shake
other half with cold water till about 1 inch from the top
enough yeast to spread out across the top

5x of them at 85'f ish keeps my 125g really nice
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post #15 of 18 (permalink) Old 06-08-2013, 08:14 PM
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I am just beginning my co2 experiment. 75 gal tank. 3 2 litre bottles with 1 cup sugar, 1/2 tsp yeast, 1/4 tsp baking soda, 2 tsp honey.

Here is some advice I have picked up. 1. Champagne yeast should work better over the long term, staying alive if fed, and will just require recharging every few weeks. 2. I am using honey as an experimental replacement of 2 tsp. Powdered sports drink. This is for nutrients for the yeast. Just sugar, water, baking soda, will cause the yeast to die off. It needs proteins and vitamins to thrive, so I am told.

ALso, not all yeasts are created equally. Baking yeast peaks quickly but isn't long lasting. Brewers yeast will likely take longer to get going, but if used properly, will keep alive, requiring simply more sugar water and nutrients to get going again (quickly I might add, since you aren't starting over every month).

TAke all I have said with a grain of salt, as I just redid my system today.
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