DIY CO2, Is yeast suppose to bubble constantly? - The Planted Tank Forum
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post #1 of 20 (permalink) Old 02-19-2009, 01:58 PM Thread Starter
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DIY CO2, Is yeast suppose to bubble constantly?

When I first put the yeast in it makes bubbles. I saw on some post before that this means the yeast is alive. Now my yeast isn't making bubbles or CO2. This my first try. It has been about 9 hours since I set it up.
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post #2 of 20 (permalink) Old 02-20-2009, 12:49 AM
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Your other post about the check valve makes me think that you have the check valve positioned backwards. If you do pressure will build up and bubbles will be very slow if at all. You only see bubbles if there is movement of CO2 from a high pressure area like the reactor system to a low pressure area like the diffuser. If you have the check valve backwards then the pressure will just build up in the reactor and there will be very little movement of CO2 so you will see very little bubbles. Furthermore the yeast is going to continue to make CO2 and the pressure in the reactor is going to continue to build until something gives. This is how you create the DIY CO2 reactor explosion that keeps many people from using DIY CO2.

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post #3 of 20 (permalink) Old 02-20-2009, 02:02 AM Thread Starter
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My yeast is working now! I guess I wasn't patience enough.
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post #4 of 20 (permalink) Old 02-20-2009, 02:28 AM
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sometimes when it is cold out, the yeast will slow down or stop.

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post #5 of 20 (permalink) Old 02-20-2009, 02:32 AM
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Quote:
Originally Posted by Honorable24 View Post
My yeast is working now! I guess I wasn't patience enough.
I set mine up at night and usually by morning it is going good and picks up over about the next 24-72 hrs.

Did you verify that your check valve is positioned correctly?

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post #6 of 20 (permalink) Old 02-20-2009, 01:00 PM Thread Starter
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I set mine up at night and usually by morning it is going good and picks up over about the next 24-72 hrs.

Did you verify that your check valve is positioned correctly?
yea it was backwards. I have ano0ther problem now, my yeast is going nuts now. Should I unplug it? My check dropper is yellow. And how long does it last. I did 1 liter of yeast
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post #7 of 20 (permalink) Old 02-20-2009, 01:49 PM
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Quote:
Originally Posted by Honorable24 View Post
yea it was backwards. I have ano0ther problem now, my yeast is going nuts now. Should I unplug it? My check dropper is yellow. And how long does it last. I did 1 liter of yeast
I wouldn't freak out too much, if you just turned your check valve around you would get a big dump of CO2 as the pressures equalized it should slow down and stabilize in about a day. Just pay close attention to the fish for signs of stress such as "gasping" near the surface.


What was your recipe and how big is your tank?

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post #8 of 20 (permalink) Old 02-20-2009, 01:54 PM Thread Starter
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Quote:
Originally Posted by airborne_r6 View Post
I wouldn't freak out too much, if you just turned your check valve around you would get a big dump of CO2 as the pressures equalized it should slow down and stabilize in about a day. Just pay close attention to the fish for signs of stress such as "gasping" near the surface.


What was your recipe and how big is your tank?
1 liter and 1/2 a cup of sugar for a 10 gallon
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post #9 of 20 (permalink) Old 02-20-2009, 01:58 PM
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how much yeast did you use?
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post #10 of 20 (permalink) Old 02-20-2009, 02:01 PM Thread Starter
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how much yeast did you use?
1 tsp
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post #11 of 20 (permalink) Old 02-20-2009, 02:01 PM
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too much!!! only need maybe 1/2 tsp
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post #12 of 20 (permalink) Old 02-20-2009, 02:16 PM
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I used 1tsp in my 2 liter for my 20gal. You could either dump it out and start over or wait for it to exhaust itself. It should do that pretty quickly with that much yeast. However, I wouldnt do either until I wait at least a day to see what happens. How are you diffusing the CO2 in the tank.

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post #13 of 20 (permalink) Old 02-20-2009, 02:17 PM Thread Starter
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I used 1tsp in my 2 liter for my 20gal. You could either dump it out and start over or wait for it to exhaust itself. It should do that pretty quickly with that much yeast. However, I wouldnt do either until I wait at least a day to see what happens. How are you diffusing the CO2 in the tank.
I'm using a hagen elite mini to diffuse it
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post #14 of 20 (permalink) Old 02-20-2009, 02:21 PM
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I will have to check that out. I am getting good CO2 but having trouble diffusing it. Are you just running the CO2 into the air intake?

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post #15 of 20 (permalink) Old 02-20-2009, 02:22 PM
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i'm using a wooden air diffuser it works pretty well
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