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plantbrain said:
This improves dissolution by adding a mist of CO2 once the concentration in the water builds up beyond simple contact exchange.
Tom. What is the maximum amount of CO2 that can be dissolved through contact exchange?

I bubble CO2 through an Aquaclear HOB filter. I adjusted the flow to allow the gas to collect on top of the intake tube elbow before it travels down to the impeller. I thought that by doing so, I would get more dissolution. Is this not the case? I don't test the pH/KH so... [smilie=w:

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