I have a sick naso

[snowmansnow]

I'm really NOT much of a fish guy , so I'm a bit at a loss of what to do here.
I've had this guy a month and he has been great. He scarfs down anything I can throw in the tank. Last night he was doing fantastic w lots of personality.
Well, today he was wedged under a rock panting. He looks a LOT thinner than he was last night (particularly on his left side)?
There are no marks other than a few abrasions where he was under the rock all day.
I have him corralled for observation at the moment.
Here are some pictures.

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Notice the shallow look on this side. (Above pic)

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It's crazy he was so much fatter last night.... No joke.
Has me scratching my head.
Thanks for any advise



So long, and thanks for all the fish.

 

[snowmansnow]

His eyes watch everything and he breaths ok.... But there's really no swimming.


So long, and thanks for all the fish.

 

[snowmansnow]

My no3 is 1.5
Nothing stresses him in the tank.
He eats 3x a day
The only thing I can think of
I've raised my no3 by 1.5 ppm over 3 days with NaNO3. Dissolved first. No chance he got a piece of it before it dissolved.


So long, and thanks for all the fish.

 

[civics14]

My regal hid in my rock work and was panting really hard for like 3 days, didn't come out to eat, I thought he was a goner for sure, then all of a sudden he came back out and started eating like nothing had happened. No idea either.

 

[lsu_fishfan]

Before he was sick was it actively swimming in the tank?

 

[snowmansnow]

LSU_fishFan;1091450 wrote: Before he was sick was it actively swimming in the tank?

like night and day.
he looked great.
then this

 

[snowmansnow]

He didn't make the night.
This was like the rtn of fish.


So long, and thanks for all the fish.

 

[civics14]

That sucks - sorry dude