Jun 26, 2020 #1 Knightreef Community Member View Badges Joined Mar 4, 2020 Messages 99 Reaction score 194 Rating - 0% 0 0 0 I found a couple if these just popped up on a few of my ZOA frags. Some type if sponge maybe?
Jun 26, 2020 #2 TriggerFinger 2500 Club Member View Badges Excellence Award Photo of the Month Hospitality Award Midwest Reefer My Tank Thread Joined Nov 12, 2018 Messages 4,509 Reaction score 16,110 Location St. Louis Rating - 0% 0 0 0 Yep! You can remove them if they start to get large and bother the zoas
Jun 26, 2020 #3 ludnix Valuable Member View Badges Reef Tank 365 My Tank Thread Joined Sep 27, 2015 Messages 1,282 Reaction score 1,643 Location Fortuna, California Rating - 0% 0 0 0 It does look like a pineapple sponge to me!