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Old 12-23-2009, 12:16 AM   #151 (permalink)
 
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Default Re: DIY CO2 Guide with Pictures & Recipes

A few questions guys..

How can i control the amount of Co2 comming out lets say 3sec per bubble..

And we all know Daytime plants take in Co2 and Nightime plants give out Oxygen. So the question i want to know is, do u all stop the co2 when switch off lights then continute again when lights on?
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Old 12-23-2009, 04:39 AM   #152 (permalink)
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Default Re: DIY CO2 Guide with Pictures & Recipes

Quote:
Originally Posted by Qwertus View Post
Every ingredient there is technically food or drinks. I wouldn't add baking soda if I were to drink it though. I also would not use aquarium water or plain water . . .
Brw, can I just add the suger to continue the reaction instead of re-mixing the entire thing?
I'm with Qwertus on this one; do not add tank water, use plain tap water between
82 & 102 f. Tank water will have micro-organisms that can impede the growth of
your little yeast buddies. That's a no-go for our purposes.

These DIY CO(2) recipes are basic sour-dough sponge, so YES you can add sugar
to charge the brew after about a week, much less sugar than you originally added.
The charged brew will foam up like champagne so you may want to pour off
a little of the alcohol/water mixture and replace with plain tap water.
Mebbe 3/4 cup of water but not more.
Make sure your new and recharged brew total volume do not go any higher than
the shoulder break of the pop bottle, you need that empty space for head-room.
I just had an incident where my new brew was so active my tank was foggy for
a couple of hours. No big deal, I left my lights on a little longer than usual & it
cleared by morning.

Even when you think your 6-7-10 day old brew is not producing gas, it is. It is
just producing at a slower rate. I give the bottle a shake once or twice a week.
Yes you can drink the alcohol, it will taste like boozy bread, 'cause that is what
sour-dough starter is made of. If recycling is your motive for wanting to
"make use" of your alcohol product, I suggest learning how to home brew,
plenty of places on the web to learn how.

The "muck" mentioned above and "snot" mentioned in another thread
on air-stones and infusers is active yeast sponge. It is not harmful
in the tank, just clean it when you see it. In the yeast bottle,
it is a result of the escaping gas pushing sponge covered bubbles
toward the top trying to escape under pressure. When you see it
floating on the top of the brew, it is the same, just in smaller volume.
Again, n.b.d. your brew is working.

Last edited by giypsy; 12-23-2009 at 04:52 AM.. Reason: definitions
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Old 12-28-2009, 08:39 AM   #153 (permalink)
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Default Re: DIY CO2 Guide with Pictures & Recipes

Quote:
Originally Posted by Qwertus View Post
I wonder if the alcohol at the result is drinkable? Just curious since it is yeast.
While it wouldn't hurt you to drink it.... it would probably taste like CRAP. I would definitely consider distilling it. You would come up with a product similar to Moonshine.

I was going to add another DIYCO2 bottle to my system to increase output, AND I was going to start another batch of Cider wine..... but after thinking about it.... I'll simply replace the air lock with the airline tubing! Kill two birds with the proverbial one stone!!!! I know that that five gallon jug really puts out the bubbles kept at the right temperature.

(Simple recipe)

1 5gal glass carboy, Sterilized with bleach, then well washed.
4 gallons unpasturized Apple cider
4 cups of sugar.

Heat cider enough to get sugar to completely dissolve. (You do not need to heat ALL of the cider. Just a gallon or two.... enough to get the sugar to dissolve)

Add to Carboy, let cool to approx. 100 degrees F. (Ever so slightly warm to the touch.) Add Yeast, insert airlock. When bubbles stop, fermentation has completed. Siphon off, leaving junk in the bottom. Re-insert airlock (to keep wine sterile.) Allow to sit and clear. (Shine flashlight through side. If beam is visible, let it sit longer) Siphon into bottles and cork.... ENJOY!

Now.... if we take that simple recipe and substitute a piece of airline tubing for the airlock... and allow the wine to ferment as usual.... you would be generating CO2 for your aquarium, and Hard Cider Wine for your own consumption. When the fermentation is complete, you could switch out another bottle, and re-attatch an airlock and sit the jug somewhere to allow the fermentation to complete (It DOES slowly taper off, much less than acceptable for CO2 generation) and let the wine clear for your first racking. (Racking is the siphoning to allow the wine to clear)

One time I tried to do five gallons in a five gallon jug. After adding the yeast and attaching the airlock, I set it on the kitchen floor. The next morning I came down to a three foot wide STICKY, STICKY puddle.... It started bubbling and foamed up overnight and pushed about 3/4 of a gallon out all across my kitchen floor, so I KNOW it generates a lot of Co2. That's why I use four gallons now in the five gal. jug.

Oh boy.... here we go. I SERIOUSLY was planning on adding another jug to my co2 system today...... and now I've got another McGyverism. Later today, check my tank Journal to see what I came up with. THIS Is going to get Interesting.
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Old 01-05-2010, 01:01 PM   #154 (permalink)
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Default Re: DIY CO2 Guide with Pictures & Recipes

Very nice and cheap way to do bubble counter.
Thanks John N.
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Old 01-05-2010, 02:20 PM   #155 (permalink)
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Default Re: DIY CO2 Guide with Pictures & Recipes

Is there a bigger ingredient recipe for 55 gallons? Or do you just double up on bottles?

Would running the line into my Eheim canister filter be sufficient for diffusion? Or should I just stick it in my power filter intake?
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Old 01-15-2010, 09:27 PM   #156 (permalink)
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Default Re: DIY CO2 Guide with Pictures & Recipes

Yo, can we get this stickied?
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Old 07-21-2010, 04:41 PM   #157 (permalink)
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Default Re: DIY CO2 Guide with Pictures & Recipes

I did this system and on my 10g tank here's the video of it running.

Used two 2liter bottles and one 20oz bottle as the nasty stuff stop.

Check valves between 2 liter bottles and 20oz and a check valve between the 20oz and the airstone.

Video:
http://www.youtube.com/watch?v=MMpN6wjrzq0

I'm thinking it may raise my CO2 a little high due to the amount that it's bubbling.

System:

Rather straight forward.
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Old 10-08-2011, 05:15 PM   #158 (permalink)
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Default Re: DIY CO2 Guide with Pictures & Recipes

Brilliant using a syringe as a bubble counter!

The jury is out on whether baking soda helps to stabilise Co2 production. It is said that alcohol levels kill off yeast faster than unsuitable pH levels.

See: http://www.qsl.net/w2wdx/aquaria/diyco2.html

"The general consensus has been that it is the rise in acid levels that kills off the yeast. But this is probably not true ... the logical alternative is to find strains of yeast more resistant to high alcohol levels, since alcohol appears to be the true killer.

Brewers yeast (Saccharomyces cerevisiae) is one step in the right direction."

But these strains can be expensive.
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Old 10-25-2011, 08:43 PM   #159 (permalink)
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Default Re: DIY CO2 Guide with Pictures & Recipes

I really appreciate seeing photos. My experience with yeast is in making bread and I always had an image of the yeast mixture that I use in baking. I had a hard time imagining the ratio of yeast to water and thought you were dealing with a much thicker mixture. This helps a lot.



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