Mar 26, 2019 #1 Noobreefer2018 New Member View Badges Joined Feb 7, 2019 Messages 12 Reaction score 30 Rating - 0% 0 0 0 What are these white things growing on my GSP? Is it killing it?
Mar 26, 2019 #2 sixty_reefer 5000 Club Member View Badges Article Contributor UK Reef Club Member Hospitality Award 305 Reef Club R2R Research Joined Nov 8, 2018 Messages 5,875 Reaction score 8,015 Location The Reef Rating - 0% 0 0 0 Looks like pineapple sponge, they harmless
