M Michelleuk Fishaholic Joined May 20, 2006 Messages 467 Reaction score 0 Jan 28, 2014 #1 What makes the white filter, turn pink. I notice it when I go to clean the filter?
frapadoodle Moved On Joined Feb 7, 2012 Messages 963 Reaction score 1 Location US Jan 28, 2014 #2 Bacteria, the good kind. Mine go from white to pink to brown.