Nerite shell pattern changing

[Khuligirl93]

Have any of you experienced your nerite snails shell pattern changing? I've had mine for about 6 months and it's clear at what point I got him, because the stripes started growing all funky. I'm sure it just has to do with different tank conditions- but it is really strange looking!

 

[Fishandmusic81]

That's really cool I've never seen that the ones ive seen have maintained the same pattern.