Mar 11, 2013 #1 vb1946 Aquarium Advice Apprentice Joined Mar 2, 2013 Messages 32 Sorry my last post I said I cleaned bottom of gravel meant top layer, silly me
Mar 11, 2013 #2 fort384 Dividing by 0 Site Team Joined Nov 23, 2008 Messages 13,931 Location Illinois What are you asking?