Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > DIY Projects
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 10-29-2005, 05:06 AM   #1
Aquarium Advice Activist
 
Join Date: May 2005
Location: Australia
Posts: 132
DIY CO2 output

Hi,

I've just put together my DIY CO2 together and put everything in. However, I'm getting virtually no output whatsoever. Is it meant to pick up later on, or should there be a strong amount of CO2 from the get go?

This was my procedure.

Put a cup of sugar into a pot with 1.5 litres of water. Heat that to the boil. Waited for that to cool down (around 30 mins I'd say).

Put 1/4 tsp of dry yeast and 1 tsp of baking soda into 2L bottle. Then added sugar water from pot.

Connected together so my CO2 bottle goes into a separator then into the tank. Btw, I have yet to put a check valve for my unit. Where should I be placing it?

My hypotheses why it doesnt work:
Not enough yeast (pretty sure it was 1/4 tsp though, but that amount didn't look like much- 1/4 teaspoon) - would increasing amount of yeast do anything?

Water maybe too hot? Though I could put my finger in there and hold it for about 4 seconds before it got too hot 4 me. Should it be cooler?

Thanks for any help.
__________________

__________________
scarf is offline   Reply With Quote
Old 10-29-2005, 09:12 AM   #2
Aquarium Advice Regular
 
Join Date: Apr 2005
Location: Hawthorne NJ
Posts: 57
I would definilty say that the water was definitly too hot, and the yeast died. You want warm water. I would say about 90 degrees or so. You just want warmer than room temperature.

The check valve should be right after the bottle.
__________________

__________________
Aquarium: 55 gallon with 60 lbs fluorite 20 lbs gravel
Filtration: Eheim 2026 Pimp #168 with Fluval surface skimmer
Lighting: PC 130 watts of 6700k PCs 12hours, 130 watts 10K 4 hours.
Co2 suppl.: 10lb tank with Milwaukee al in one.
Flora:Java Moss, Water Sprite, Microsword, Anacharis, Water Primrose, Rotala rotundifolia, Cryptocoryne wendtii, Echinodorus x barthii, Bacopa monnieri
Fauna: 3 Sailfin Mollies, 8 Tiger barbs, 6 Cory Julii, 6 Ottos, 2 SAEs, 9 Amano shrimp.
tazcrash69 is offline   Reply With Quote
Old 10-29-2005, 09:38 AM   #3
Aquarium Advice Addict
 
Join Date: Dec 2002
Location: Greencastle, PA
Posts: 2,649
Send a message via Yahoo to shawmutt
Quote:
I would definilty say that the water was definitly too hot, and the yeast died. You want warm water. I would say about 90 degrees or so. You just want warmer than room temperature.
Agreed, 30 minutes is not enough for the water to go from boiling to 32C (not 90C lol). Hot tap water should be enough to dissolve the sugar, and won't kill the yeast.
__________________
~Mike Shaw
Shawmutt.com. Blogs and Pictures of the Massively Multiplayer Offline game, Real Life.
shawmutt is offline   Reply With Quote
Old 10-29-2005, 10:17 AM   #4
Aquarium Advice Freak
 
Join Date: Feb 2005
Location: Cedar City, UT
Posts: 425
Send a message via MSN to ringfinger
How long did you wait? My DIY system takes a few hours to start producing bubbles, but if after a day you still see no output then the yeast died. Water just above room temp. Good luck.
__________________
ringfinger is offline   Reply With Quote
Old 10-29-2005, 07:38 PM   #5
Aquarium Advice Activist
 
Join Date: May 2005
Location: Australia
Posts: 132
Would I be able to save the "water" I have in the generator now if I added some yeast and added some hot water to raise it just above room temperature?

Or would I have to do another batch?
__________________
scarf is offline   Reply With Quote
Old 10-29-2005, 08:29 PM   #6
Aquarium Advice Addict
 
Join Date: Dec 2002
Location: Greencastle, PA
Posts: 2,649
Send a message via Yahoo to shawmutt
I would just start another batch.
__________________
~Mike Shaw
Shawmutt.com. Blogs and Pictures of the Massively Multiplayer Offline game, Real Life.
shawmutt is offline   Reply With Quote
Old 10-29-2005, 11:18 PM   #7
Aquarium Advice Apprentice
 
Join Date: Feb 2005
Location: Georgia
Posts: 16
scarf, I had a batch that I mixed up today do nothing at all, not a bubble to be seen. After a few hours had passed and I was sure it wasnt going to work I dumped a little more yeast right into the bottle and shook it up. Now its making bubbles like a champ.
__________________
secretagent is offline   Reply With Quote
Old 10-30-2005, 09:32 PM   #8
Aquarium Advice Addict
 
Join Date: Mar 2005
Location: Northern California
Posts: 1,114
You should use tepid water to mix your sugar..that is water that is barely warm. Once you mix everything together. Let it sit open on your counter overnight. Then hook it up to your tank the next day, it should be fizzing nicely. It is important for yeast to get oxygen in the first stage.

Also, you can rehydrate the yeast in a cup with about two teaspoons of sugar. 1/4 tsp Yeast, 2 tsp sugar 1 cup tepid water. Mix and let it sit for an hour. Then pour that into your 2-liter bottle (which has all your other ingredients ready and mixed), shake it well and let it sit over night. You will have very good results by doing this.

Here is the mix I use... Formula for each bottle; 2 cups sugar, 1tsp baking soda, 1tbs Molasses, 1 scoop protein drink powder, 1/4 tsp yeast.
__________________
Zezmo is offline   Reply With Quote
Old 10-31-2005, 01:55 AM   #9
Aquarium Advice Freak
 
Join Date: Sep 2005
Location: Columbia, Maryland
Posts: 330
Protein drink powder???? Sorry but what for if you don't mind me asking. I'm about to build me first CO2 system.

Thanks
__________________
One Fish, Two Fish, Red Fish, Blue Fish
CompMage is offline   Reply With Quote
Old 10-31-2005, 09:10 AM   #10
Aquarium Advice Activist
 
Join Date: May 2005
Location: Australia
Posts: 132
Ahh... tepid water vs my near boiling water. I think that is definately my mistake.

And secretagent, I did that exact same thing a few moments after I posted that message. I wrote up that message, had nothing to do, saw I had a fair bit of yeast left sitting in the fridge, so I just dumped in 1/2 a teaspoon and now it's fizzing along nicely. Was too lazy to mix a new batch of sugar water

n lol zezmo, thats such a complicated procedure 8O

Also helped for me to shorten the tubing from the bottle to the diffuser in the tank, so I don't have to wait ages to see if it works or not (though the smell does give it away)
__________________

__________________
scarf is offline   Reply With Quote
Reply

Tags
co2, diy, diy co2

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
DIY CO2 help! bry1105 DIY Projects 11 10-29-2009 09:07 PM
DIY coil denitrator output test showin extreme high NO3 and NO2 ing_monkey General Hardware/Equipment Discussion 3 10-17-2009 12:10 PM
DIY co2 diffusers out of odd things! (aka co2 diffuser Mk2) kennef DIY Projects 2 04-03-2007 06:12 PM
Hagen CO2 output? Fubie Freshwater & Brackish - Planted Tanks 10 10-01-2005 11:30 PM
Increasing output of Hagen Plant-Gro CO2 Natural System gheitman Freshwater & Brackish - Planted Tanks 3 11-09-2004 06:38 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 12:51 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.