Could this be each?

[ericrodriguez]

I just saw this on my yellow tang wish didn’t have all day.. what do you guys think?

 

[mnat]

If you mean the big spot on the dorsal fin, probably not. ich is like pinhead size and covers the fish.

 

[MadReefer]

I agree, spots are to big for ich.

 

[ericrodriguez]

Thanks it didn’t have it all day and I left the house for 2 hours and come back and boom I saw this
But it’s only one now

 

[ericrodriguez]

Thanks

 

[Foxchase]

Could just be like a big grain of sand stuck to it. I'd wait and see if it just goes away.

 

[ericrodriguez]

Could just be like a big grain of sand stuck to it.

Agree
I’ve been home all day and just saw after I went to pick up something..