Sep 25, 2018 #1 W waynesai New Member View Badges Joined Jul 23, 2018 Messages 10 Reaction score 1 Rating - 0% 0 0 0 Does anyone know what are these and their causes?
Sep 25, 2018 #2 nautical_nathaniel Indecision may or may not be my problem. View Badges Excellence Award Reef Tank 365 Photo of the Month Article Contributor West Palm Beach Reefer Reef Squad Emeritus Joined Feb 19, 2014 Messages 4,881 Reaction score 12,270 Location West Palm Beach, FL Rating - 0% 0 0 0 May be some sort of coralline algae. Does it rub off easily?
Sep 26, 2018 #3 OP OP W waynesai New Member View Badges Joined Jul 23, 2018 Messages 10 Reaction score 1 Rating - 0% 0 0 0 no it doesnt come off easily