Aquaclear 201 Powerhead for DIY CO2 diffusion
This problem no longer exists with the Magnum running it.
I have the same effect in my reactor. This happens because there might be
collecting some other gas (other than CO2) that doesn't so readily
dissolve
in water as CO2. My guess is the effect is more drammatic if you use yeast
produced CO2 since there might be some side metabolic products.
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