Jan 12, 2023 #1 M Mcgarrison New Member View Badges Joined Jan 12, 2023 Messages 1 Reaction score 0 Location Madison Rating - 0% 0 0 0 ?
Jan 12, 2023 #2 Daniel@R2R Living the Reef Life View Badges Staff member Super Moderator Reef Squad Partner Member 2024 Excellence Award Photo of the Month Article Contributor Hospitality Award Article Administrator Reef Pumpkin Carver R2R Secret Santa 2023 My Tank Thread Joined Nov 18, 2012 Messages 37,525 Reaction score 64,041 Location Fontana, California Rating - 100% 1 0 0 I'm pretty sure those are pineapple sponges. They're harmless and a sign of a maturing tank.