Speed to run air pump?

I took a good look at my root ball and the air stone has a hole shaved out of the ball. Should I run the stone on low or is this just part of it ?

Not really following what your saying… are u meaning your air stone seems chipped or broken? Ig that’s the case …as long as your getting good air dispersion and it’s not shooting bubbles like heavily boiling water…as long as u got all tiny bubbles I would worry about it.

The area above my air stone is bare. Like the air bubbles left a tunnel all the way to bottom of the basket