My DIY CO2 Diffuser/reactor - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 09-06-2007, 08:34 AM Thread Starter
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My DIY CO2 Diffuser/reactor

I always wanted the best utilization of CO2 in the aquarium. Using the venturi of a power-head was an easy but wasteful process. So what I had done is used a 1/2" elbow and a 1.5L pet bottle to trap the bubbles. When I used a 1/2" elbow the power head would not suck CO2 from the DIY system unless a pressure had built up. That meant that some CO2 would remain unutilized. Today I used a 1" elbow, and although my DIY is depleted today, this gadget is still drawing CO2.

If you have a choice, you have a problem, till you elect your choice. No choice, no problem, only consequences, learn to live with them.

Last edited by essabee; 11-27-2008 at 03:43 AM.
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post #2 of 8 (permalink) Old 09-06-2007, 10:03 PM
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cool, I think I'm going to make one too. I have an old vacuum siphon tube I can use... And I guess the elbow joint doesn't have to fit exactly on the powerhead.. or does it?
I'll go browsing the hardware store to see what I can find.


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post #3 of 8 (permalink) Old 09-07-2007, 02:58 AM Thread Starter
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cool, I think I'm going to make one too. I have an old vacuum siphon tube I can use... And I guess the elbow joint doesn't have to fit exactly on the powerhead.. or does it?
I'll go browsing the hardware store to see what I can find.
I used a bit of tape around the powerhead output and a 1/2" reducer for a snug fit.

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Last edited by essabee; 09-07-2007 at 03:00 AM. Reason: add
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post #4 of 8 (permalink) Old 09-07-2007, 03:47 AM
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tape? i that going to last? I might try silicone.


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post #5 of 8 (permalink) Old 09-07-2007, 06:24 AM Thread Starter
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tape? i that going to last? I might try silicone.
Try epoxy putty, I went with tape for trying it out.

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post #6 of 8 (permalink) Old 09-08-2007, 08:50 PM
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I just made one and I didn't have to use glue or tape at all. Everything fits tightly and snuggly. The hardware store is a great place.

Do you know if a reactor is more effective if the output/reactor part is above the substrate or is actually in the substrate.


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post #7 of 8 (permalink) Old 09-08-2007, 09:14 PM
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Perhaps you could try running the CO2 into the powerhead intake. Suction on the CO2 tube would be slightly weaker, but the bubbles get chopped much smaller.

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post #8 of 8 (permalink) Old 09-08-2007, 09:37 PM
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Perhaps you could try running the CO2 into the powerhead intake. Suction on the CO2 tube would be slightly weaker, but the bubbles get chopped much smaller.
I do that and the reactor.. I want to see how high I can take with this CO2 reator.


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