diy co2 - The Planted Tank Forum
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post #1 of 33 (permalink) Old 01-23-2011, 01:00 PM Thread Starter
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diy co2

i was wondering if it would be okay to run a diy co2 without a drop checker and ph checker for a few weeks till it came in. my concern is this tank 10 gallon is heavily planted but it also houses a bout twenty juvenile danios and guppies. it also has atleast three fry in it. i do not want to harm the fry or the juveniles since this is their grow out tank. will have pics of set up before i install it.
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post #2 of 33 (permalink) Old 01-23-2011, 01:01 PM
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Yep, it'll be fine. No way you're gonna gas out your fish with a single DIY unit.
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post #3 of 33 (permalink) Old 01-23-2011, 02:20 PM
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I agree, I have 5 bottles on my 55 gallon and I do not constantly monitor my PH and C02 levels. I just observe my fish... But, I have plants that take up the c02 pretty quickly, like Riccia, Rotala, Sunset,
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post #4 of 33 (permalink) Old 01-23-2011, 04:13 PM Thread Starter
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what would be the best recipe for the co2? some sites say 1 teaspoon yeast to 6 cups of water. there are no two same recipes. some even call for gelatin. what would be the best recipe?
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post #5 of 33 (permalink) Old 01-23-2011, 04:15 PM Thread Starter
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i have anarchis, three large anubas plants, 5 sagitaris plants from 6 inches tall to 1 inch, i have five crypt wenditi? i think that is the spelling and three large banana plants.
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post #6 of 33 (permalink) Old 01-23-2011, 05:30 PM
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I don't think there is a "best" recipe for the co2. Its just a matter of what you prefer to deal with. I am trying the jello method. I read that one should chop the jello into small pieces to give the yeast more surface area to work with. I'm finding a problem with that. The jello itself is liquefying over time. So its not such an easy task to dump the alcohol/water and put in fresh. If you let the jello solidify in the bottle and put the yeast/water liquid on top, it would be easier to pour it off and replace it as time goes on. The upside with plain yeast, water and sugar is its easy to replace. The downside is you have to replace the whole mixture every time.

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post #7 of 33 (permalink) Old 01-23-2011, 06:05 PM
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i used to use 2 cups of sugar in a 2l iter soda bottle to one teaspoon of yeast. fill it up to where the bottle starts to bend up at the top

as far as a drop checker is concerned. you cant adjust your bubbles per second anyway. so why bother
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post #8 of 33 (permalink) Old 01-23-2011, 06:07 PM Thread Starter
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i wondered about that. but i am wondering if you could put some sort of regulation on it.
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post #9 of 33 (permalink) Old 01-23-2011, 06:10 PM
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absolutely not. if you try to regulate it you will be cleaning your diy mixture off of your walls and everything else in the room. you cant allow pressure to build up.
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post #10 of 33 (permalink) Old 01-23-2011, 06:58 PM Thread Starter
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interesting to know.
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post #11 of 33 (permalink) Old 01-23-2011, 07:00 PM
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lol. yeah. glad you asked?
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post #12 of 33 (permalink) Old 01-23-2011, 07:41 PM Thread Starter
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maybe. I would have had a good laugh about it but my husband would have been furiously mad.
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post #13 of 33 (permalink) Old 01-23-2011, 07:45 PM
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you wouldnt be laughing for too long. that stuff is pretty gross
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post #14 of 33 (permalink) Old 01-23-2011, 10:42 PM
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The "recipe" doesn't really matter at all.

If you put in too much sugar it won't matter because the yeast will die from high levels of alcohol far before it ever uses up the sugar.

And if you don't put in "enough" yeast it doesn't matter because the yeast can multiply so fast that even a tiny pinch of yeast will be more enough after a day or 2.


Put in some sugar, put in some water and put in some yeast. If you want to measure it to feel better then go right ahead.

But I used to us 2 cups of sugar and about a 1/2 tsp of yeast. Adding more of either won't matter.
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post #15 of 33 (permalink) Old 01-24-2011, 01:24 AM Thread Starter
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built the first piece of the generator. here's a pic for you all.
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