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Re: [APD] Air bubbling
I believe S. Hieber wrote this email section below:
> Oh yes, one of the oldest and most persistent myths in the hobby is that
> an air stone imparts O2 to water largely by diffusing directly from the
> bubbles to the water. Actually, the main value of an air stone is the
> water movement it creates, not O2 in the bubbles being added directly to
> the water.
I have a air stone in one of my small tank. But it's just under the surface
so it's just providing water movement.
Works a treat.
> So a small powerhead can get you much more water movement,
> usually for no more cost.
I tried a small powerhead once and all it did was choke up with floating
plant material and the occasional Hymenochirus boettgeri (Dwarf African
Frog) who'd get a limb caught in the intake and drown!
At least air stones don't kill my inhabitants.
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