Sick bass

[Devzev]

Any input is greatly appreciated

In my 90 gallon grow out
Parameters are all normal

Lethargic and back half is turning white

See pics

 

[Devzev]

Now he is having trouble staying upright

Please advise

 

[Charney]

is the fish still with us? Sorry to say that doesn't look good at all. I would get him into a quarantine tank right away. warm water, salt and I would treat with oxytet in the water. Anything in the tank big enough to try and eat him?