DK
My Hagen powerheads are well below the surface and I have this problem with or without a skimmer. The only thing I can think of is that maybe I am getting bubbles from cyano or other algae that are accumulating in the intake of these powerheads - kinda like a slow moving alka selzer. Beat the heck out of me but it is a PIA.
My Hagen powerheads are well below the surface and I have this problem with or without a skimmer. The only thing I can think of is that maybe I am getting bubbles from cyano or other algae that are accumulating in the intake of these powerheads - kinda like a slow moving alka selzer. Beat the heck out of me but it is a PIA.