CO2 diffuser optimal location? - The Planted Tank Forum
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post #1 of 6 (permalink) Old 03-31-2006, 05:53 AM Thread Starter
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CO2 diffuser optimal location?

Hi guys was just wondering for passive DIY CO2 diffusers (bell) where is the optimal location in the tank in order to diffuse more of the co2 would bringing it closer to the substrate be better or it doesnt matter where it is located.
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post #2 of 6 (permalink) Old 03-31-2006, 06:21 AM
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I would think near the filter return.


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post #3 of 6 (permalink) Old 03-31-2006, 10:30 AM
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I've not used a bell, but I would think the optimal location would be whereever it can be exposed to the most water flow/current. I do like the idea of near and below the return, because that might allow bubbles that escape to get sucked up and run through the filter impeller.
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post #4 of 6 (permalink) Old 03-31-2006, 12:25 PM
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Bottom half of tank, underneath water return.
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post #5 of 6 (permalink) Old 04-01-2006, 06:01 AM
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I think Tom said something about this in his thread about CO2..called Co2 revelations I think...yes here:

"Also, folks using spray bars, turn them vertically, next to the intake and place the disc down near this also. This hides the bar, the disc, intake all in one place. Having the spray bar current blowing along the back side the tank wall seems to give good flow characteristics+ near the disc, the water blows out and away from the intake and circles around to the intake.
Since water is being blown directly away from the intake, this gives optimum mixing.
Since water is being blown directly on top of the difusser, all the bubble mist is being blown all over the tank."

Here is a link to that thread...pretty good first post to read (I'll have to do it one day...LOL)
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post #6 of 6 (permalink) Old 04-01-2006, 06:45 AM
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why not take a cue from amano and put them where they get maximum water flow:
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