please help me stop microbubbles

i have a remora aqua c skimmer. i have the bubble trap attachment, but it is not helping. does anyone have any ideas on how to stop the bubbles from getting into my tank? the skimmer has been running for almost 5 months. ive tried foam at the output etc. nothing helps. im out of ideas.

 

My setup has always been dicey from the beginning but originally I put on a filter sock(small) on the output. I have a coral life skimmer. Even though I have the sock there sometimes micro bubbles get through to my pump and I never understood why this works but I just unplug the protein skimmer and plug it back in and no more micro bubbles. I don't think I really even need the sock there but I'm already at 50% mechanical filtration so the extra sock helps. In my sump the water return out of protein skimmer goes into the second chamber and then there's a wall there where the water falls into a giant pre filter then into my pump. There's so many areas where the micro bubbles could be getting strained out in my sump so I don't really know the solution. I still don't know why unplugging it and replugging it in stops the bubbles. It doesn't make sense at all but hey it works.