Wall Fish Tank Looking For A Protein Skimmer With Only 2.5 Inches Space Between The Wall The And The Fish Tank?

Looking for a protein Skimmer with only 2.5 inches space between the wall the and the fish tank? - wall fish tank

I have a tank of 72 liters of sea water of 2.5 inches of space between the wall and the tank. It was also the opening of 2 inches at the rear of the tank. All Hang-On Skimmer would fix the limited space. If not, while the skimmer tank is good.