Not sure what’s going on

[Tallen78]

Ok so this guppy has changed color completely I’ve had them about a yr in the same tank and all of a sudden he looks like this he used to look like the one he is sparring with I don’t know what is going on and why does it have the raised scales by its top fin

 

[Betta'sAnonymous]

How long have those scales looked like that?

 

[Tallen78]

How long have those scales looked like that?

Just noticed them now they weren’t like that yesterday and he wasn’t red either i don’t know

 

[emeraldking]

Could be something tumorous beneath the scales.