Sep 24, 2011 #1 J Jcolonna Aquarium Advice Newbie Joined Sep 24, 2011 Messages 2 Location Maryland Can anyone tell me what this is?
Sep 25, 2011 #2 mr_X Aquarium Advice Addict Joined Apr 27, 2008 Messages 17,895 Location Fairless Hills, Pa. i wish i could enlarge the pic. possibly sponge.