My yellow belly blue Tang has a rare'ish mutation

[Kzang]

Pretty neat "masked" mutation.As she gets older it extends and darkens more toward the mouth.

https://reefbuilders.com/2012/03/20...-regal-blue-tang-interesting-masked-mutation/

 

[Mr_Knightley]

Awesome! Keep us updated as she ages, this should be interesting to watch.