I have a 100g bb main tank with a 35g sump/fuge. I protein skim 24/7. I have a small area set up as a fugue (~5g) with Miracle Mud and macros. I have been battling high NO/PO for awhile now and have not figured out why. Just wondering if the fuge can become a NO/PO sink and release it into the main display thus actually doing the opposite of what it is supposed to do.


