Can anyone tell me if this lesion is an injury or a disease?

[Aubz]

Tried a thread earlier maybe I loaded too many videos…trying to determine what this is on the side of my clownfish- it almost looks like a callous or blister…

 

[vetteguy53081]

Tried a thread earlier maybe I loaded too many videos…trying to determine what this is on the side of my clownfish- it almost looks like a callous or blister…

Other thread now answered. No need to cross post - it just confuses everyone