Question about DIY CO2 - The Planted Tank Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 26 (permalink) Old 12-18-2007, 05:07 AM Thread Starter
Planted Tank Obsessed
 
PTrader: (17/95%)
Join Date: Nov 2007
Location: santa clara, CA
Posts: 375
Question about DIY CO2

Hi

Just finish my DIY CO2. Set it up and let it work.

I accidentally let the tank water flow into the CO2 bottle ( I squeeze the bottle, so water flow in the bottle) The question is that the yeast already die off ? It have been 3 hours, and i see no bubble at all.

Let me know, so i can change the mixture
stagius is offline  
Sponsored Links
Advertisement
 
post #2 of 26 (permalink) Old 12-18-2007, 05:24 AM
Algae Grower
 
PTrader: (12/100%)
Join Date: Dec 2007
Location: Minneapolis
Posts: 89
Did you see bubbles coming out before you squeeze it? If not, maybe the yeast was killed water temp??? How big is you DIY co2 system? The bigger the bottle, the longer the wait. And when the water ran back into the bottle, is there still some air space between the solution surface and cap?
liljmn is offline  
post #3 of 26 (permalink) Old 12-18-2007, 05:43 AM Thread Starter
Planted Tank Obsessed
 
PTrader: (17/95%)
Join Date: Nov 2007
Location: santa clara, CA
Posts: 375
Sure, i see some bubble, but i am not sure if it is CO2 . ( squeezing an empty bottle still produce bubbles).

Water flow back a little bit. But still is still air space between the cap and surface.

My juice bottle is 2.65 L.

First, i put hot water in the bottle. Add sugar. Stir

Activate the wine yeast in separate cup with warm water. Wait for 10 min.

Mix those two together and wait .... 3 hours .. nothing happen
stagius is offline  
 
post #4 of 26 (permalink) Old 12-18-2007, 05:56 AM
Algae Grower
 
PTrader: (12/100%)
Join Date: Dec 2007
Location: Minneapolis
Posts: 89
I think it's unlikely your yeast would die from water from your tank. I would give it more time depending on how much air space you have. My less than 1 L DIY co2 system little didn't produce bubbles until after 3 hours or so. Give it a go over night. If it doesn't produce bubbles in the morning, check for leaks. If not leaks are found, maybe they are dead and try again.

Isn't this hobby great? lol
liljmn is offline  
post #5 of 26 (permalink) Old 12-18-2007, 06:02 AM Thread Starter
Planted Tank Obsessed
 
PTrader: (17/95%)
Join Date: Nov 2007
Location: santa clara, CA
Posts: 375
yeah, love to death.

Let see what happen tomorrow.

Last question, how do i figure out the Bubble per second thing ?
stagius is offline  
post #6 of 26 (permalink) Old 12-18-2007, 08:55 AM
Algae Grower
 
PTrader: (0/0%)
Join Date: Jul 2007
Location: Rosamond, CA
Posts: 18
One mistake I made the first time I tried DIY CO2 was to add yeast to water that was too hot and it killed the yeast. I use a candy themometer to check the temp(if you dont have a candy thermometer I suppose you can use any glass thermometer) it should be around 100 F. Also something else I found helpful was dissolving the yeast in a cup of warm water and a tsp of sugar before adding it to the container. It worked much better than just pouring the yeast into the container and alowing it to clump up. I usally see bubles within half an hour or so. My plants are growing like weeds, just be careful not to allow too much CO2 to flow into your tank it harms the fish. To check if the ammount of CO2 is safe I bought a CO2 indicator, you fill it with the indicated amount of water and add two drops of the indicator solution and it turn green, if it is safe and yellow if there is too much CO2. You can run the tubing from the CO2 container into a air flow regulator and then into your tank and adjust according to the indicator color.Good Luck!
Tony462 is offline  
post #7 of 26 (permalink) Old 12-18-2007, 09:00 AM
Planted Tank Guru
 
jaidexl's Avatar
 
PTrader: (42/100%)
Join Date: Sep 2006
Location: 33919
Posts: 3,500
Quote:
Originally Posted by stagius View Post
how do i figure out the Bubble per second thing ?
You don't need to figure bps for DIY, you can't change it anyway. Hooking up a bubble counter for curiosity is just asking for leaks/low pressure, keep the line as short as possible for the best consistency. Get a drop checker if you want to know how much CO2 you're diffusing into the tank.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jaidexl is offline  
post #8 of 26 (permalink) Old 12-18-2007, 09:01 AM
Banned
 
fshfanatic's Avatar
 
PTrader: (24/100%)
Join Date: Apr 2006
Location: Arizona
Posts: 5,279
Tony, I have NEVER had DIY C02 produce too much c02 that it killed even a single fish. Dont scare the guy for Christs sake.

Ehfipimp #273 ( Eheim Classic: 2260, 2217, Eheim Ecco: 2236, 2232 ) Fluval FX5

fshfanatic is offline  
post #9 of 26 (permalink) Old 12-18-2007, 09:27 AM
Algae Grower
 
PTrader: (0/0%)
Join Date: Jul 2007
Location: Rosamond, CA
Posts: 18
Fshfanatic I gain nothing by scaring Stagius. I'm speaking from personal expirence, also prehaps you show check out some of the DIY CO2 mishaps posted right here on this forum before you speak.
Tony462 is offline  
post #10 of 26 (permalink) Old 12-18-2007, 01:03 PM
Planted Tank Enthusiast
 
evercl92's Avatar
 
PTrader: (15/100%)
Join Date: Aug 2006
Location: Columbus, OH
Posts: 520
Having tank water get into your mixture is why you need a check valve.
ANd, also learn that you shouldn't squeeze the bottles.

Quote:
Originally Posted by fshfanatic View Post
Tony, I have NEVER had DIY C02 produce too much c02 that it killed even a single fish.
Agreed.
evercl92 is offline  
post #11 of 26 (permalink) Old 12-18-2007, 02:11 PM
Banned
 
fshfanatic's Avatar
 
PTrader: (24/100%)
Join Date: Apr 2006
Location: Arizona
Posts: 5,279
Tony dont be so damn defensive. I didnt mean much by the comment.

Ehfipimp #273 ( Eheim Classic: 2260, 2217, Eheim Ecco: 2236, 2232 ) Fluval FX5

fshfanatic is offline  
post #12 of 26 (permalink) Old 12-18-2007, 07:28 PM Thread Starter
Planted Tank Obsessed
 
PTrader: (17/95%)
Join Date: Nov 2007
Location: santa clara, CA
Posts: 375
I just found out that I mess up the recipe.

I mix 2 cup of water ( 16 oz) with 4 cup of sugar by accidentally ( 32oz). I just add another half tsp of yeast to balance the mixture.

Until now, I see no bubble at all. I guess it didn't work. I think I should start the mixture again.

Last question, what is the space between the water surface and the cap in the CO2 bottle for ?
stagius is offline  
post #13 of 26 (permalink) Old 12-18-2007, 07:38 PM
Planted Tank Guru
 
jaidexl's Avatar
 
PTrader: (42/100%)
Join Date: Sep 2006
Location: 33919
Posts: 3,500
The space is mainly to keep the mixture out of the tubing, also makes it easier to swirl the bottle without getting anything into the tube.

I don't know that your mix wouldn't work, but it sure is a ton of sugar! I'm confused, are you using a 16 or 36oz bottle? You should be using a 2 liter soda or juice bottle around the same size.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jaidexl is offline  
post #14 of 26 (permalink) Old 12-18-2007, 07:39 PM
Algae Grower
 
PTrader: (12/100%)
Join Date: Dec 2007
Location: Minneapolis
Posts: 89
lol.
The air space in the bottle allows the co2 to diffuse up into the air tubing into the tank. As for the bubble rate, what I do is time it for a minute and try to count the number of bubbles and then divide that by 60 seconds. That's how I do it. I get one bubble per 5-6 seconds.

Good luck
liljmn is offline  
post #15 of 26 (permalink) Old 12-18-2007, 07:46 PM Thread Starter
Planted Tank Obsessed
 
PTrader: (17/95%)
Join Date: Nov 2007
Location: santa clara, CA
Posts: 375
Sure, that's a lot of sugar i ve ever used.
I use the 2.65 L juice bottle.
I accidentally use double amount of sugar compared to yeast, water.

liljmn: 5-6 bubble/second is a little bit low, right ?
stagius is offline  
Reply

Tags
None

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome