Yellow tang darting across tank help

[Justin poirier]

My yellow tang is acting kind of funny. I'm not sure if it's just me but he will be swimming fine from a distance then I come by the tank and he'll swim then dart at the glass usually in the same spot over and over and over again until I move. It looks as one of the sides of his body his white on it. Kind of on the indent of his body right under his tip fins.

That's the picture of the "white zones" not in the middle I know that is normal look above that.

This is the other side

Also he swims perfect fine when I'm not near by. Also he eats perfect

 

[Justin poirier]

This way it highlighted

 

[Humblefish]

The white looks to be running along his lateral line, which might be the onset of HLLE: https://www.reef2reef.com/threads/hlle-head-lateral-line-erosion.259916/

 

[Reef_Junkies]

Is it a new addition? If so, he may just be getting stressed when youre nearby. Give it some time, he'll get used to you. Kind of hard to see what's going on with the fish from your pictures because it's out of focus. My guess is either ich or lateral line disease...

 

[Justin poirier]

Is it a new addition? If so, he may just be getting stressed when youre nearby. Give it some time, he'll get used to you. Kind of hard to see what's going on with the fish from your pictures because it's out of focus. My guess is either ich or lateral line disease...

Not new about a month in this tank.

 

[Bubs2]

Sometimes my PBT does it. I say a quick boye is a good boye.

 

[melypr1985]

Looks to be HLLE to me. Humble posted a great link for more detailed info on that.

 

[atoll]

Are you feeding it algae of some sort? Many fish also get to make the connection between people coming to the tank and being fed and it might be it's way of getting excited at the thought your about to fed it.

 

[GHsaltie]

Could he be seeing his reflection in the glass?

 

[SashimiTurtle]

I'd listen to Humble and Mel. Looks like HLLE. Take carbon offline if you are using it(or at least improve your quality of carbon and make sure you rise it really well, and make sure you are on top of water changes.

https://www.reef2reef.com/threads/carbon-proven-to-cause-hlle-in-tangs.187403/