Dec 11, 2023 #1 sezaro21 Community Member View Badges Joined Jan 10, 2023 Messages 25 Reaction score 17 Location Near da beach, mon Rating - 0% 0 0 0 Hello everyone. I have a weird growth that I noticed on one of my rocks. Can't tell what it is. Is anyone able to tell me what these are and if they are bad for my tank? It's only on this one rock and no where else in the tank.
Hello everyone. I have a weird growth that I noticed on one of my rocks. Can't tell what it is. Is anyone able to tell me what these are and if they are bad for my tank? It's only on this one rock and no where else in the tank.
Dec 11, 2023 #2 Reefkeepers Archive 2500 Club Member View Badges Joined May 30, 2023 Messages 3,059 Reaction score 2,783 Location Falmouth Rating - 0% 0 0 0 Sponge, harmless filter-feeder
Dec 11, 2023 #3 Waters "...in perfect isolation, here behind my wall." View Badges Reef Tank 365 Hospitality Award Midwest Reefer Ohio Reefer My Tank Thread My Aquarium Showcase Joined Nov 5, 2013 Messages 8,039 Reaction score 17,528 Location Mentor, OH Rating - 0% 0 0 0 Looks like a sponge....harmless filter feeder. I have them in my tank as well....they normally grow in dark, shaded areas.
Looks like a sponge....harmless filter feeder. I have them in my tank as well....they normally grow in dark, shaded areas.
Dec 11, 2023 #4 vlangel Seahorse whisperer View Badges Excellence Award Reef Tank 365 3RMAS Member Article Contributor My Tank Thread My Aquarium Showcase Joined Feb 5, 2014 Messages 5,528 Reaction score 5,500 Location Pittsburgh, PA Rating - 0% 0 0 0 I also have similar white-ish sponges in my tank, especially in the shadowed areas.