This is a film (series) about a growing family of N. multifasciatus If you haven't seen it, give it a look. You can turn on subtitles to make it a bit easier to take in.
Battle of the Shells
http://m.youtube.com/playlist?list=PLnfbIGeN-6zpuv0ZNN9Or1Dmnoq1Rfv6o
.... if you are a...
