H HUNGRYOVEN New member Sep 3, 2017 #1 Found this growing on sand, rock, and acan skeleton. Sent from my SM-G930F using Tapatalk
Ron Reefman Active member Sep 4, 2017 #3 Yup! Cyanobacteria. It's not the end of the world. Google it and you'll find similar photos and lots of answers.
Yup! Cyanobacteria. It's not the end of the world. Google it and you'll find similar photos and lots of answers.