For clarification, using a blacklight is supposed to help you see if there are AFB scales in the bottom of a cell. The blacklight will make other things made of protien glow as well, so always double check that what you are seeing is a scale and not shaped like something else. An AFB scale should only be on the bottom of a cell (see picture). Be sure to look at the comb under a normal light as well, and if you are still not sure then ask or you can even send in a picture!