Anyone tried this co2 recipe? - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 08-31-2013, 04:49 PM Thread Starter
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Anyone tried this co2 recipe?

Im looking to dabble with DIY co2 using the yeast method rather than pressurised since its only a 65 litre tank and I don't have much space. I found this recipe and its had good feedback from one or two people on the site I found it, just wanted to know if any of you have tried it? Its from the UK so swap jelly to jello? (as in the stuff you put with ice cream not what we call jam)

Quote:
Make the jelly as packet says , but add 2 cups of sugar when dissolving jelly cubes . Let it sit in fridge to set.
Once set the hard part is to get the jelly into the 2 ltr bottle. My kids do this for me , but gloves would be a good idea lol .
Get a cup of warm/hot not boiling water add a tspn of sugar , dissolve add 1/4 tspn of yeast , mix. Let it sit 5- 10 just to check if your yeast is active .

add to bottle and add 1/2 tspn of bicarb , this stops the yeast from getting too lively , then fill up with warm/hot but not boiling water to within 2 inch of top of bottle, add a further 1/4 tspn of yeast . A light shake once and you are done.

Edit - The first run i did with this lasted 6 full weeks . I used fresh bakers yeast and cane sugar . This run now ive used sugar beet and dried instant yeast so i will record the progress with the new mix ....
Source: http://www.ukaps.org/forum/threads/m...-gallon.21386/


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post #2 of 5 (permalink) Old 08-31-2013, 06:47 PM
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I used this recipe a while back and it works. Apparently the idea is that the gelatin keeps the sugar locked away from yeast long enough to prolong the CO2 production. However, under normal room temperature, the jello mixture will melt into a sticky mess. I would get on average maybe 4 weeks of CO2. I'd just skip the jello and use champagne yeast and light brown sugar IMO.

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post #3 of 5 (permalink) Old 08-31-2013, 09:33 PM
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I have not seen that one, using "Jelly".
I also would use Jell-O, the gelatine dessert.
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post #4 of 5 (permalink) Old 09-01-2013, 05:51 AM
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Quote:
Originally Posted by Monster Fish View Post
I used this recipe a while back and it works. Apparently the idea is that the gelatin keeps the sugar locked away from yeast long enough to prolong the CO2 production. However, under normal room temperature, the jello mixture will melt into a sticky mess. I would get on average maybe 4 weeks of CO2. I'd just skip the jello and use champagne yeast and light brown sugar IMO.
Lotsa variables. I was getting 4-6 weeks off of sugar and "instant" yeast (Red Star), no bicarb/baking soda. Gelatin (jelly/jello) wasn't even on my radar. I'm somewhat suspicious of the "benefits". My nominal room temps are/have been 65-85 degF.
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post #5 of 5 (permalink) Old 09-01-2013, 10:23 PM Thread Starter
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Thank you for the input guys, there's so many "best" recipes out there with everything from denture pills to yeast, to vinegar/baking soda that I'm struggling to decide on what to try first


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