Jul 24, 2018 #1 J judyheitz Aquarium Advice Apprentice Joined Jan 14, 2018 Messages 36 Location Oregon Dark looking stuff is it an algae or something else. It’s on most of my plants.
Jul 24, 2018 #2 ZxC Aquarium Advice Addict Joined Nov 1, 2017 Messages 1,648 Location Forest City, Ontario BBA Black Beard Algae
Jul 24, 2018 #3 7 77speedyturtle Aquarium Advice Regular Joined Jul 12, 2018 Messages 54 I'm not 100% sure but look like beard algea.