diy c02 still not up to par? - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 09-05-2011, 05:44 PM Thread Starter
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diy c02 still not up to par?

Set it up late saturday night. One getting a bubble about every 12-15 seconds. I used 2 cups water,2 cups of sugar,1/4 teaspon yeast and mixed it with 1/4 cup warm water to get it going. I am using the active dry yeasy. When I opened it,it still had a vacumn seal on it. What can the problem be? The co2 line is almost at the bottom of the aquarium which makes it almost even with the 2 liter bottle outside of the tank. Does the pressure of the water affect the rate at which the co2 comes out? Do I need to start over with a new batch?
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post #2 of 6 (permalink) Old 09-05-2011, 06:44 PM
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You must have a very small bottle for the DIY CO2 generator. Two cups of water is a pint, about a half liter. Typically you use 2 cups of sugar in a 2 liter bottle. I suspect you are getting about all the CO2 you can from that small bottle.

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post #3 of 6 (permalink) Old 09-05-2011, 07:43 PM
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A good recipe for a 2 litre bottle is two cups sugar, 1/2tsp yeast, and a 1/4tsp soda (optional), and to the top rim of the bottle (before it starts to curve) with luke warm water. Shake it every few days or so.

I get much more co2 than a 4 or 5 bubble a minute in mine, lasting about 3 weeks.

I would deffinately use a little more yeast (not too much though), and more water for sure.


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post #4 of 6 (permalink) Old 09-05-2011, 07:57 PM Thread Starter
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Quote:
Originally Posted by Hoppy View Post
You must have a very small bottle for the DIY CO2 generator. Two cups of water is a pint, about a half liter. Typically you use 2 cups of sugar in a 2 liter bottle. I suspect you are getting about all the CO2 you can from that small bottle.
Its a two liter bottle.
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post #5 of 6 (permalink) Old 09-05-2011, 08:17 PM
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Quote:
Originally Posted by mr.schertz View Post
Its a two liter bottle.
Fill it up with water untill 3/4.
2 cups of wate ris 1/4 filled.


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post #6 of 6 (permalink) Old 09-06-2011, 03:59 AM Thread Starter
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it's rocking now after I filled the bottle three quarters full and added a half teaspoon yeast instead a quarter teaspoon.. I am getting a bubble almost every second!!!!????
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