Marnee
Fish Fanatic
Could someone tell me if I should be placing the CO2 diffuser close to the filter intake or should it be on the opposite end of the tank from the filter?
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Somewhere near high flow is good.
As far as I am aware some people place them under filter intakes (so the co2 is taken into the filter giving it more time to absorb).
Under the outflow is also a good place.