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Old 07-25-2018, 09:50 AM   #28 (permalink)
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Default Re: Passive CO2 diffuser

yeah, the device is outside the tank, attached to a canister filter.

I like your thinking though. I'll look into it.

Here are some preliminary numbers
Cylinder volume
2” diameter x 7" height
21.99 cubic inch

in 2.5 hours
3.93 cubic inch of CO2 dissolved into the water.
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