I have a lot of air bubbles from my overflow, so i use a 200 sock, but i just check my nitrates two weeks ago off the charts, i did 50 % water changes, and many more after that, had a 20 g refuge on a 125 G, ASM 3.
No luck they just go right back up, I do change them once a week for a clean.
I have a eshobbs euro sump.
I have dsb, this system is 6 months in , first time used a sock,
ps I clean the socks with a water hose and then ring them to dry then reuses, never soaked it in bleach ir put it in the washing machine, i have a septic system.
Would taking of the sock from the overflow and puting it on the output skimmer would that help the nitrates, and use the sponge in the bubble trap but keep it underneath the water level.
PLEASE HELP
I just lost my 4 year old Squmosa clam