Mar 20, 2024 #1 Tomb85 Active Member View Badges Joined Sep 9, 2019 Messages 121 Reaction score 76 Rating - 0% 0 0 0 Hi, I have this appearing on rock work started of as little black dots everywhere now a bigger patch here. What is it?
Hi, I have this appearing on rock work started of as little black dots everywhere now a bigger patch here. What is it?
Mar 20, 2024 #2 KrisReef 10K Club member View Badges Partner Member 2024 Hospitality Award Joined May 15, 2018 Messages 12,324 Reaction score 28,289 Location ADX Florence Rating - 0% 0 0 0 Sponges? Coralline algae? The picture is unclear but either is a good candidate.
