Backyard Aquaponics
A place to discuss aquaponics

Shouldn't be since it I would have thought it would have been the delivered air with no air stone. After all you don't measure water pump flows depending on what sprinkler you have attached.

I checked out that website and they did have pump curves but they are so small that you can't read the writing on them

Well a usable curve anyway. Once you put an air stone on the end of the tube you might as well chuck the curve away. You would think they would put depth per dia of tubing. As water pumps show head pumping water in a set dia pipe.