Mar 19, 2011 #1 SandyFeet Aquarium Advice Newbie Joined Feb 13, 2011 Messages 9 Location St. Louis, MO It's about the size of a dime and growing. Thanks!
Mar 19, 2011 #2 melosu58 SW REEF 20+ YEARS Joined Oct 21, 2004 Messages 39,152 Location Virginia A sponge. I have several in my tank. Great filter feeder.
Mar 19, 2011 #3 OP OP SandyFeet Aquarium Advice Newbie Joined Feb 13, 2011 Messages 9 Location St. Louis, MO thanks!