Whitespot

[Millie]

Hi All

Does whitespot appear as small white spots and then the next day the spots are white patches. This is what is happening with my regal tang at the moment.

Millie

[Wombat]

not usually the white spots, which look like grains of salt, and are pure white classically remain as distinct spots.

What you are describing isn't classical white spot (I'm not saying it isn't, as a photo would help hugely)