Need DIY CO2 Help - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 03-17-2015, 01:21 AM Thread Starter
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Need DIY CO2 Help

Hey guys,

Just setup my first Co2 system this weekend. Used two 2-liter bottles with 2 cups of sugar, 1/2 tsp of yeast and a tsp of baking soda. My reactors started making Co2 within the first 24 hours. I'm sitting at about a bubble for every 4-5 seconds after about 36 hours. I'm not getting any Co2 out of my diffuser which is a Fluval Ceramic 88g diffuser. I wanted to make sure everything was working so I took off the diffuser and a ton of bubbles shoot out of my line. Obviously, the pressue was built up, but not coming out. Any suggestions on how to get this up and running or should I just wait it out? Thanks for the help.
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post #2 of 9 (permalink) Old 03-17-2015, 02:19 AM
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Ceramic diffusers often do not work w/diy. They take too much pressure to operate.


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post #3 of 9 (permalink) Old 03-17-2015, 02:21 AM Thread Starter
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So, what should I use instead? Air stone? Glass diffuser?
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post #4 of 9 (permalink) Old 03-17-2015, 03:16 AM
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I went through the exact same situation.
Same diffuser, same amounts and same waiting period 24+ hours.
There's a leak and you just haven't found it yet.
Check by spraying a light mix of dishwashing fluid and water around the connections.

The diffuser ended up working for me.
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post #5 of 9 (permalink) Old 03-17-2015, 05:01 AM
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You have to leave the CO2 system joints soaked with the soap solution for several minutes before most of the leaks will show up at all. You are looking for tiny masses of very tiny bubbles.

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post #6 of 9 (permalink) Old 03-17-2015, 11:58 AM Thread Starter
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Just place some dish soap along the connections and see what happens? Do you think it would be on the reactors if I'm getting bubbles in the bubble counter?
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post #7 of 9 (permalink) Old 03-17-2015, 12:16 PM
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It takes a good amount of pressure to crack those diffusers. Even leak free you might not be able to make it work. You could use an airstone. Personally my preference is the bamboo chopstick stuck in the end of the tubing.
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post #8 of 9 (permalink) Old 03-17-2015, 12:25 PM
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Clean cigarette filter works pretty well too.
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post #9 of 9 (permalink) Old 03-17-2015, 09:24 PM Thread Starter
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OK, so I found a small leak around one of my bubble counter tubes. Hopefully this fixes this problem.
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