HELP!!! Azul is dying!!!

[Chizzle]

So I noticed my Azul stopped eating around 5 days ago. Talked to one of my friends and we thought it was just going through a phase. I suspected it had an internal parasite and picked up some prazipro yesterday before work. When I got home, the bass was sitting on the gravel, wouldnt react/swim away, and had labored breathing. His colors were also all out of sync. On one side he was half dark and half light and on the other side his tail area was dark, had a light patch around the middle, and head area was dark. I did a small 20% wc and added the correct amounts right away.

He seemed to be doing better last night, but now he is belly up laying on the gravel. He's still breathing, what should I do?!?!?

 

[Chizzle]

 

[Chizzle]

moved the airstones closer to him

 

[bassinmike85]

sounds like if he was fine before adding treatment and after the treatment he started to go upside down sounds like u added to much treatment..hopefully he'll make it..

 

[Chizzle]

I added 1 teaspoon per 20 gallons as directed by the instructions on the bottle.

 

[fwprawn]

Do another water change if it's not too late.

 

[bobtan]

Do water change,dont stress him put salt,bump temperature up ,Hope For The Best For This Beauty

 

[gangster]

I try to never use meds....if u need to always start w/ no more than half dose. And then go from there.

Id do a wc.

 

[Chizzle]

Checked on him 20 minutes ago and he's dead. already had a feeling he wasnt going to make it last night.

 

[Chizzle]

I dissected him and didnt find anything wrong internally. I did find this brown gunk all over his gills, so his death probably had something to do with that. Can anyone ID what that is and what should I do to keep my other 3 bass and tigrinus safe?