Microbubbles! But not from skimmer!

Stercus could you elaborate a little more on your return setup or post a pic so I can copy your design?

 

Your return looks fine. You should not brewed to do any thing

As has been said, air might be leaking in through poor seals. Try wrapping joints in tape one at a time. this will help I'd the joint that is leaking

 

Bottom 90* is just below water line, with a couple anti-siphon holes. That is also the only piece I did not glue into place for direction.

HTH

 

Type of tape to wrap joints?

 

Plumbers tape - Google

Plumbers tape such as Google image examples above should do the trick

 

So just start wrapping all the joints with tape including the ones out of water?

 

especially the ones out of water

 

If that is loc line attached to the pvc elbow and the loc line is even partially outta water that could be it. I have heard of people having problems like that and locline.

Sent from my DROIDX using Tapatalk

 

Thanks for all the help reefers!
I'm going to start working on all of these suggestions.

 

Anymore suggestions Reefers?? Headed to my LFS today for some more advice.