Backyard Aquaponics
A place to discuss aquaponics

What gets the most bang for the buck aerating a fish tank? Dropping water from a fountain, waterfall, or pipe? Agitating the surface? Big bubbles agitating the surface? Tiny bubbles from an air stone?

Increasing DO is most effective with increased surface area of water to air. So the more contact between the water and the air the greater the exchange. Lots of smaller bubbles will achieve this, flooding and drianing in grow beds through a porus material, breaking the surface tension of the water, they all help.

I am not aware of any scientific studies as to which delivers the greatest results. The key is to have as much water surface coming in contact with air as possible to allow for the exchange to occur.

But now you have got me thinking... Time for another research binge.