loc nar is right. I've done more research, and also this venturi concept is so sophisticated already not to mention me trying to adapt it to make less noise and maximize the oxygen delivery.

I rushed to judgement when I used the word obsolete or even criticized airstones. Airstones are very effective and sometimes I get ahead of myself with all my freaking research. I like the concept of the venturi, but I dont have enough experience yet.

good luck
AquaponicHerb Reviewed by AquaponicHerb on . airstones vs airstones Should I use the 99 cent air stones that come in the 3 pack the ones round like a ball. They look like there doing as good as the walmart airstones the middle sized ones. Which 1 of these should i use? Ive bought both. Rating: 5