Mar 16, 2019 #1 jokim Active Member View Badges Joined Feb 28, 2011 Messages 250 Reaction score 80 Location NJ Rating - 0% 0 0 0 anyone know what this yellow stuff growing on my rock? Rock is about 10 years old and the yellow stuff on it and It was small so never worried about it. Starting to spread now
anyone know what this yellow stuff growing on my rock? Rock is about 10 years old and the yellow stuff on it and It was small so never worried about it. Starting to spread now
Mar 16, 2019 #2 Lovemyreef2015 Reefing Mom! View Badges Reef Tank 365 My Tank Thread Joined May 21, 2017 Messages 6,123 Reaction score 30,571 Rating - 0% 0 0 0 Sponge. Harmless