[jd lover]

With my filtration system the surface of my tank is constantly moving so I was wondering if I really need an air stone? Isn't their purpose to move the water? An if mine is constantly moving I shouldn't need it right?

 

[PfunMo]

Correct. If the water is being moved so that it does not become "layered" and water is constantly moving at the top, the O2 exchange is okay. Just don't let it get a slick on the top that might stop gas exchange. Oil from food can build up but that is true, airstone or not. Just keep it moving.

 

[jd lover]

Well that's never a problem with the oil since I change the water 2x a week but thanks I'm going to take the airstone out when I get home