Can fish have white spots that aren't ich?

[Biff0rz]

I noticed a single spot on my naso and a single spot on my trigger. My trigger has had spots like this before but they haven't multiplied and I assumed they were from the rocks/sand he hides in. The naso is a different concern since they both have one. These were not present yesterday, fish are acting normal and nothing has been added to the tank since 12/12. All fish have been through proper ttm.

Pics below

I have a couple of tangs, so I'm wondering if these are from squabbles

 

[lapin]

I have a yellow eyed tang that will bang into the rocks sometimes and the scale damage looks like an ich spot for a while.

 

[Jay Hemdal Verified Community Expert]

Those spots do look too large to be ich, and flukes don’t make spots like that. Probably just minor injuries. What I do when I see these is to just watch for smaller ones showing up, or spots that come and go day to day.
Jay

 

[HB AL]

Nothing to worry about unless they are covered with them in a few days. Looks like just very minor irritations.