DIY co2

Dan H

AC Members
Feb 28, 2009
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HI
i've been thinking about making diy co2 for my tank and i was just wondering what the correct mixture is?:help:
do you use any yeast or is it a certain 1?
plus do these actually work?
thanks :)
 
basically any yeast for bread making can be used.. if you prefer to spend a bit more you can purchase wine yeast. it is suppose to be a bit more tolerant of alcohol.

that said the mixture can vary depending on the container.. but sugaer, tepid water and yeast.

sugar and other mixes to stabilize the sugar..1-2 cups. yeast mix 1/4 table spoon to tepid water. let stand to activate. tepid water in approx equal to sugar add yeast and wait.

should start bubbling in a few hours. ;)


you can also look at :

http://www.aquariacentral.com/forums/showthread.php?t=136668

there may be other DIY stickies or article you can peruse.
 
Yep it works great. I used one cup of sugar and one teaspoon of regular yeast. Dissolved the sugar in warm/hot water in a 2 ltr bottle (fill almost up to the bend in the bottle). Then I took 110degree water (just hot tap water but I used the thermometer to measure and mixed in the yeast gently. Waited five minutes and gave it a gentle stir again. Then i added it to the sugar mixtures. Gave it a swirl and screwed in the lid. By the next morning I was producing co2 in very good quantity and it hasn't slowed down yet.
 
i use 2 cups sugar, 1 teaspoon of yeast and 1 teaspoon of baking soda.

there is no exact recipe. its all just a ballpark figure. some mixtures last longer than others. don't go way off track of the recipes that you've read of but dont be afraid mixing it up a little and seeing what works better for you
 
use less yeast. it will allow longer intervals between changes.
2c sugar
1tsp or 3/4tsp yeast
110 degree water.

activate yor yeast first for 5 minutes.

give it 20 minutes and yer done.
 
100 degree water with 2cups of sugar, i only use 1/4 tsp of yeast and it lasts me about 3 weeks. fill the water up till the bottle curves at the top.




i have seen wonderful results because of the DIY co2. i just moved my amazon sword that took up about 1/2 of my 10gal.!!!
 
rearranged my plants last night to accomodate some java moss structures and was very surprised to see my Sword plant had sprouted two new leaves. I had a black out period on Tuesday because my onion plants were looking stressed so I kept the lights out for the day and when didn't realy check on anything until last night during a water change. Man, that plant is taking off. Had to replant a very large section of plants to give it some more room to fill out.
 
ya don't need a ton of yeast..

it will work fine with 1/4 teaspoon with 2 cups sugar.

the yeast is a culture and will multiply.
 
Thanks everyone :)
i will give it a go ;)
how would i put it in the tank?
can i just attach the hose to an air-stone?
or do i need something else?
sorry i'm new to all this :D
also can i put the bottle in the cabinet under the tank or does it have to be higher up?
 
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The budget way that many people do it is to run the tube into their filter intake, as the impeller helps with preventing it just bubbling out at the surface.

Keep this in mind: The higher the Yeast:Sugar ratio is, the higher volume of CO2 will be expelled, but it will produce the CO2 for a smaller duration.
 
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