Mar 22, 2018 #1 Jam Active Member View Badges Joined May 25, 2016 Messages 264 Reaction score 117 Rating - 0% 0 0 0 Looks like it to me but not sure never see it grow in a line.
Mar 22, 2018 #2 Tahoe61 10K Club member View Badges Excellence Award Moderator Emeritus Joined Mar 2, 2012 Messages 13,239 Reaction score 15,708 Location AZ Rating - 0% 0 0 0 If it scratches off easily it's not coralline.
Mar 23, 2018 #3 SAPPER Active Member View Badges UK Reef Club Member Joined Mar 14, 2018 Messages 362 Reaction score 779 Location Durham, UK Rating - 0% 0 0 0 Thinking maybe a sponge.
Mar 23, 2018 #4 sfin52 So many pedestrians so little time View Badges Excellence Award Hospitality Award Midwest Reefer My Tank Thread Joined Jun 19, 2016 Messages 24,079 Reaction score 101,817 Location Usa Rating - 0% 0 0 0 My coraline starts of as a small circle and grows out. It’s takes effort to remove it loads of elbow grease and a scraper glass tank
My coraline starts of as a small circle and grows out. It’s takes effort to remove it loads of elbow grease and a scraper glass tank
