Help needed

[habs247]

Thanks. I used those to set up the skimmer. Unfortunately, I don't know what I'm looking for I terms of signs that I have it tuned correctly as I've never used a skimmer before.

I've read that I should aim to have the bubbles in the neck twice the size of the ones in chamber. These seem too big. But I can't turn the air down anymore.

I also verified that the water level is perfect for this brand of skimmer.

Here's an attempt.

[Cal_stir]

try turning the air down so the bubbles are breaking halfway thru the skimmer cup.
how long has it been running?