Co2 not working
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Co2 not working

This is a discussion on Co2 not working within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> I set up a DIY co2 system a while back and it seemed to be working well with bubbles coming out of my glass ...

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Old 09-07-2013, 03:16 PM   #1
 
Co2 not working

I set up a DIY co2 system a while back and it seemed to be working well with bubbles coming out of my glass diffuser. Then I realized that the bubbles were reaching the surface and being wasted. I tested it and the results support my observation: the co2 is around 4-5 ppm. I've already tried doing a bleach soak (2 scoops of bleach to 10 scoops of water) but it didnt help much. What should I do to get the bubbles to dissolve?? Any advice would be welcome.
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Old 09-07-2013, 04:12 PM   #2
 
I use a water forced mechanism to dissolve the bubbles. for this you need to get an internal filter as small as possible. The tube needs to be put close to the impeller so that the bubbles gets trapped in the impeller and broken into smaller bubbles. The outlet of the pump is then connected to a bottle with open bottom. The bottle should be kept vertical so that the water flows downwards. The bubbles coming out of the motor will be then forced to go down and eventually will be dissolved completely. I have got this working with 100%. I will try to upload a diagram, but below given is the video at
.

Last edited by praveentnair; 09-07-2013 at 04:14 PM..
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Old 09-07-2013, 04:59 PM   #3
 
Quote:
Originally Posted by praveentnair View Post
I use a water forced mechanism to dissolve the bubbles. for this you need to get an internal filter as small as possible. The tube needs to be put close to the impeller so that the bubbles gets trapped in the impeller and broken into smaller bubbles. The outlet of the pump is then connected to a bottle with open bottom. The bottle should be kept vertical so that the water flows downwards. The bubbles coming out of the motor will be then forced to go down and eventually will be dissolved completely. I have got this working with 100%. I will try to upload a diagram, but below given is the video at Cheap DIY co2 reactor - YouTube .
I don't think that would work with the filter I have, my filter doesn't even appear to have an impeller (at least not around the intake).
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Old 09-07-2013, 05:36 PM   #4
 
how big is your aquarium? the filter i am talking about is not the filter you use for water filtration. you have to get a new one, if you don't have one. It may cost $10 or so.
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Old 09-07-2013, 10:08 PM   #5
 
Quote:
Originally Posted by praveentnair View Post
how big is your aquarium? the filter i am talking about is not the filter you use for water filtration. you have to get a new one, if you don't have one. It may cost $10 or so.
Not very big, only 5 gallons.
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Old 09-09-2013, 01:07 AM   #6
 
ok, for that the water forced method may not be suitable. Though some bubbles escape, the glass diffuser would work just fine. Do you have much water movement in the surface. I guess, if you have lot of water movement in the surface, there are chances that CO2 would escape ever after it is dissolved.
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Old 09-14-2013, 07:42 PM   #7
 
Quote:
Originally Posted by praveentnair View Post
how big is your aquarium? the filter i am talking about is not the filter you use for water filtration. you have to get a new one, if you don't have one. It may cost $10 or so.
that looks like a pretty good setup... do you think you could set me up with your "how to"? It would be greatly appreciated! :)
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Old 09-14-2013, 10:32 PM   #8
 
I too have a glass diffuser and a DIY system. Did you install a bubble counter? I am just curious if this additional bottle is necessary when using a glass difuser with ceramic disk? I appreciate any feedback.
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Old 02-12-2014, 10:50 AM   #9
 
Did you get this going? I am sorry for the delay. But was busy with some office work.
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