Jun 16, 2016 #1 E erfig Active Member View Badges Joined Mar 9, 2015 Messages 153 Reaction score 82 Rating - 0% 0 0 0 just noticed this growth on some of the rock It has a green tint and seems to be speading
Jun 16, 2016 #2 KJ Lone Wolf View Badges Reef Squad Leader Excellence Award ETRC Member Hospitality Award Joined Dec 14, 2011 Messages 22,319 Reaction score 113,207 Location Tennessee Rating - 0% 0 0 0 Sponge?
Jun 16, 2016 #3 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 Yup sponge, harmless.
Jun 17, 2016 #4 OP OP E erfig Active Member View Badges Joined Mar 9, 2015 Messages 153 Reaction score 82 Rating - 0% 0 0 0 Thanks
