Jul 18, 2013 #1 S saltcreep1025 Aquarium Advice FINatic Joined Jun 23, 2003 Messages 747 Location Indianapolis This black spot just popped up and the polyps around it are retracted. Whats the deal??? Will it spread? Should I cut it off? Leave it alone?
This black spot just popped up and the polyps around it are retracted. Whats the deal??? Will it spread? Should I cut it off? Leave it alone?