Does anyone know for sure what it means when an Angelfish flashes his stripes?

[Zierra]

I have some angelfish and occasionally they are silver with no stripes and sometimes they flash they're stripes then they go away. Does this mean anything specific?

 

[librarygirl]

Take a look at this article, it may answer your question.

 

[Zierra]

Thank you! thats helped a lot and eased my mind greatly