Aug 6, 2020 #1 K Kieko250 Community Member View Badges Joined May 18, 2019 Messages 95 Reaction score 17 Rating - 0% 0 0 0 Hi anyone know what this is? They are circular brown dots in my sump.
Aug 7, 2020 #2 fishguy242 Cronies..... INSERT BUILD THREAD BADGE HERE !! View Badges Partner Member 2024 Reef Tank 365 Hospitality Award Midwest Reefer Fish Medic R2R Secret Santa 2023 Joined Jan 21, 2020 Messages 43,375 Reaction score 250,193 Location Illinois Rating - 100% 1 0 0 sponge??