Yellow Tang Breathing Heavy and aggressive at glass

[isomorphic85]

I have a yellow tang that was QT'd for 9 weeks, treated with multiple rounds of prazi.

Fish was transferred to display tank, noticed the slightest amount of white haze that was barely noticeable on one eye, the next day it was gone.

I now notice him breathing heavily and being aggressive towards to the glass, backing up and trying to attack the glass with the white spine they have.

Is this normal aggression or is this being caused by some sort of parasite in the gills that is making him act this way?

There's currently only 2 ocellaris clowns in the tank and the 1 yellow tang in question.

There are also 4 snails.

no corals, no inverts etc.

My question is what do i do ? Do i sit back for a day and observe to see if the heavy breathing slows down or is this a sign that I need to act fast and treat the DT with prazi?

Video Link of him is below

https://www.youtube.com/watch?v=VwK5fZdf-W4

Thanks in advance for the help

 

[kodo28]

I would say nothing to worry about.

Seems that your YT is just "fighting" against is reflection on the tank glass. They use to do that when introduced in a tank.