There was a table at the Cabin Fever show this weekend that had a fish tank with nymphs in it to help people ID them. However the guys at the booth didn't know their stuff. Mistook a crane fly larvae for a helgramite. They also didn't know what an instar was. I'm sure people learned some things about nymphs, but thought it was unfortunate that the people heading it up weren't as versed as they should have been.