May 20, 2002 #1 F fishfreek Aquarium Advice Addict Joined May 16, 2002 Messages 2,256 Location Virginia I have been told this is a sponge. What is everyones option
May 20, 2002 #2 reefrunner69 Aquarium Advice Addict Joined May 16, 2002 Messages 1,663 Location Cedar Key, FL Looks just like a chicken liver sponge, only a little darker.