Protein Skimmer

[rare]

Hi everyone,
Well we just bought my dad a protein skimmer for Christmas.
It is a 135 aqua euro in-sump. We have an 80 gallon tank.
But I have a question, while we are running the skimmer little bubbles are shot into the water. Does anyone know why?

 

[veni vidi vici]

Give it a few days to break in and then your going to have to tune it up a bit using the wedge valve. The micro bubbles should go away after that.

 

[rare]

Oh ok thanks. I thought I did something wrong.