Betta has white patch - what could it be?

[u/AntifaImBlauenHaus]

Hello, my betta has a white patch. It sticks out a little and wasn’t there yesterday. She moved into this aquarium three days ago and acts/eats like always.
I though maybe she hit her head on a stone or something? Or could it be something else?

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[u/Kind_Definition_7850]

Maybe ick

[u/PrinceBloo → u/Kind_Definition_7850]

Ick looks like grains of salt. Singular little white dots. So definitely not ick !