What fish is this?

[Travis Rider]

Just picked this up from our LFS and they didn't know the name.

 

[Waters]

It is Neoglyphidodon oxyodon......Neon Velvet Damsel. As they mature (they reach 6 in), they lose their color and become aggressive.

 

[Rick cowen]

Gorgeous fish, can be aggressive.

 

[Yuki Rihwa]

It will loss all the cool blue line and become a pure black color damsel, very aggressive as it get older.

 

[AC0DX]

Gorgeous fish, can be aggressive.

So what can be with them as they get older? Say in a 90 Gallon reef.