Mar 5, 2022 #1 tjcmtnbiker Active Member View Badges Joined Feb 19, 2021 Messages 101 Reaction score 100 Location SOMD What state or country do you live in Maryland Rating - 0% 0 0 0 I'm cleaning my sump and have this white stuff all through out it. Is it harmful?
Mar 5, 2022 #2 vetteguy53081 Well known Member and monster tank lover View Badges Partner Member 2024 Excellence Award Reef Tank 365 RGB Article Contributor Tampa Bay Reef Keepers West Palm Beach Reefer Hospitality Award Ocala Reef Club Member 305 Reef Club Wisco Reefers Midwest Reefer Fish Medic MAC of SW Florida Rock Pool Reef Keepers R2R Secret Santa 2023 My Tank Thread My Aquarium Showcase Joined Aug 11, 2013 Messages 96,707 Reaction score 215,505 Location Wisconsin - Rating - 100% 15 0 0 Sponge and some are pineapple sponge often found in dark areas mainly sump
Mar 5, 2022 #3 OP OP tjcmtnbiker Active Member View Badges Joined Feb 19, 2021 Messages 101 Reaction score 100 Location SOMD What state or country do you live in Maryland Rating - 0% 0 0 0 Thanks!