Can't figure out my microbubbles!

[Teeter]

Evening all,

I've had this 47G Tideline AIO setup for a couple months now, and throughout the whole time, the return has been spewing bubbles. I was able to significantly reduce them by raising the water level in the return chamber, but the bubbles are increasing in quantity again. I've tightened all the connections and made sure a vortex wasn't being created. I attached pics to show what's going on back there as well. At this point, do I need to just purchase a new pump? Really not sure what to do to fix this. Thanks!

 

[Heres_doe_]

Can you fill the water to the top of the elbow?

 

[Teeter]

Can you fill the water to the top of the elbow?

I could, it'll just go over that baffle. Not sure if that's an issue.

 

[dochoot]

Can you reduce the flow to see if it helps?

 

[Teeter]

Figured I’d update this after figuring out the issue…they weren’t bubbles. Apparently, my issue the entire time was just detritus and particles in the water. The fleece rollers that came with the tank (marketplace purchase) weren’t a snug fit in the overflow chambers at all. SOOOO much water was just passing right around them. This brand tank isn’t super popular, it seems, but I was able to order some custom acrylic filter sock holders, and the difference is night and day.