Aug 21, 2017 #1 Keeks09 Community Member View Badges Joined Aug 13, 2017 Messages 64 Reaction score 18 Rating - 0% 0 0 0 What is this? It looks spongy im pretty sure its not live rock decaying.
Aug 21, 2017 #2 Tahoe61 10K Club member View Badges Excellence Award Moderator Emeritus Joined Mar 2, 2012 Messages 13,239 Reaction score 15,708 Location AZ Rating - 0% 0 0 0 Sponge harmless, a benign filter feeder.
Aug 23, 2017 #3 enaldy Community Member View Badges Joined Aug 3, 2017 Messages 28 Reaction score 14 Location greenbrae, ca Rating - 0% 0 0 0 Sponges for sure..