Mar 7, 2007 #1 T The Gillman Aquarium Advice Regular Joined Jan 1, 2005 Messages 50 Location Peoria Illinois USA Hitchhikers from corals,good or bad?
Mar 7, 2007 #2 Devilishturtles Aquarium Advice Addict Joined Jul 9, 2003 Messages 8,543 Location Frederick, Maryland Kinda looks like a Umbrella mushroom to me, a Rhodactis sp.
Mar 7, 2007 #3 melosu58 SW REEF 20+ YEARS Joined Oct 21, 2004 Messages 39,152 Location Virginia Looks like a mushroom to me also.