Aug 19, 2021 #1 reefdoc23 Community Member View Badges Joined Jan 9, 2021 Messages 37 Reaction score 10 Location Cincinnati Rating - 0% 0 0 0 Have about 10 or 20 of these I just noticed in my sump. Any thoughts?
Aug 19, 2021 #2 RedFrog211 Valuable Member View Badges My Tank Thread Joined Sep 10, 2020 Messages 1,052 Reaction score 1,097 Location Atlanta Rating - 0% 0 0 0 Pineapple sponge- good filter feeders!