Ok i just bought a jebo hang on tank 180 skimmer but the problem is that it lets so many bubbles go into the tank!!! i have a skilter on my 18 gal FO tank wih 2 baby clowns and people complain about the skilter letting alot of bubbles come into the tank but i dony see a problem with the skilter compared to the jebo skimmer.

Some times its all in the adjusting,
some skimmers if are on, just a little of,
may start to work wrong.

turn down the water flow until it is barely producing skimate. it will work just as well, but without as many bubbles.