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Discussion Starter · #1 ·
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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Discussion Starter · #3 ·
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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