Aug 23, 2013 #1 Bill0181 Aquarium Advice Freak Joined Aug 23, 2013 Messages 315 Not the GSP but the one below it. A brown leather toadstool? Thanks
Aug 24, 2013 #2 Sniperhank Giant Clam Addict Joined Nov 18, 2011 Messages 20,651 Location Summerville, Pennsylvania Looks more like a hairy mushroom to me, just all brown.