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Would you be able to use like a co2 reactor with a air pump hooked up to it instead of a co2 source? Maybe placing a gravel cleaning tube with a power head attached to bring the water to the air! Any ideas? Do you all think this would work?
Plus anyone use under gravel jets? if so how much flow would be recommended?

I think my take on this is that you should stick to what the manual suggest. As in use a power head with a tub that draws in the air to aerate you tank. It's not so simple as increasing the dissolved oxygen and your fish will breed. Currents also plays a role. If it was that simple, then my zebras that lived on an air filter would've been breeding long since.