I just spent the last 30 minutes trying to search the boards before i ask a stupid question but i couldn't find an answer. I just transfered to a 220 gallon reef tank and have a sump for the 1st time. The tank transfer was 3 weeks ago and when i look in the reef sump the white filter pads are dirty. I am wondering if i should rinse the filter pads off or if by cleaning them i am getting rid of good bacteria? Any input would be appreciated.