Aug 21, 2020 #1 N newmillennia New Member View Badges Joined Aug 21, 2020 Messages 1 Reaction score 0 Location Omaha Rating - 0% 0 0 0 Just saw this on my rock , What is this??
Aug 21, 2020 #2 TankCandy Well-Known Member View Badges EPRA Member Joined Aug 17, 2020 Messages 737 Reaction score 1,513 Location Limerick, PA Rating - 100% 4 0 1 Hello newmillennia, welcome to R2R. When you get a second try and uploading the image again.
Aug 21, 2020 #3 Cstar_BC Well-Known Member View Badges My Tank Thread Joined Nov 18, 2019 Messages 724 Reaction score 1,290 Location Vancouver BC Rating - 0% 0 0 0 Looks like the sponge I have - mine is blue . Would guess sponge though
Aug 21, 2020 #4 V vsolovyev Active Member View Badges My Tank Thread Joined Sep 29, 2013 Messages 165 Reaction score 187 Location Texas, USA Rating - 100% 1 0 0 Yes that is a sponge, not a bad thing.
Aug 21, 2020 #5 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 Filter feeding ball sponge