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Old 03-11-2006, 03:17 PM   #1
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DIY CO2?

I attemped making a DIY CO2 system according to the plans on this site http://www.qsl.net/w2wdx/aquaria/diyco2.html but it just doesn't seem to be working. I'm pretty sure there aren't any leaks in my system, so the main problem seems to be the yeast just isn't generating much CO2. What kind of yeast mixtures does everyone who uses this method have and how did you go about mixing it? Also, what kind of diffuser/reactor does everyone find to be the easiest/best overall?
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Old 03-11-2006, 03:22 PM   #2
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One tip that I found seems to work well is to foam the yeast before you add it to the bottle. This consists of mixing some tepid water (neither warm nor cold) with sugar in a bowl, and then adding the yeast. I usually let this sit for 30-60mins and then add it to the bottle. This gives the yeast a head start, and will ensure more consistant and quicker CO2 mixes.
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Old 03-11-2006, 03:45 PM   #3
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I'll try that out. Should the water in the bottle for the final mixture be warm or tepid rather? I boiled mine first to disenfect it and I'm wondering if I mixed it too soon and killed most of the yeast before it cooled enough...
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Old 03-11-2006, 05:06 PM   #4
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Hot water will kill yeast. Slightly warm should be okay, but tepid is better.
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Old 03-11-2006, 07:36 PM   #5
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Okay I tried it out again... hopefully it'll work out this time. Whats the best type of diffuser to use/make? Right now I just have an airstone at the bottom of my tank while I try to get the yeast to produce.
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Old 03-11-2006, 09:12 PM   #6
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What kind of filter do you have. If you have an AC just put the co2 hose in the input for the filter.
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Old 03-11-2006, 11:09 PM   #7
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I have an aquaclear 70. Sounds like a good simple idea... will that hurt the filter at all though?
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Old 03-11-2006, 11:16 PM   #8
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No it may be a little noisier though.
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Old 03-11-2006, 11:41 PM   #9
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Cool, I'll give it a try tommorow. Hopefully my yeast will still be producing, otherwise I'm definately still doing something wrong.
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Old 03-12-2006, 01:32 AM   #10
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The water needs to be 80-100 degrees Fahrenheit. I usually mix it and let it sit for an hour or so before capping it.
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