Flame Angel with Fin Rot? Video & Pics Inside

[Asonitez]

So,
I purchased this flame angel about a week ago and have been slowly raising the copper levels in my tank to treat for ich.

The flame is handling the low doses well and currently none of the fish are exhibiting any forms of ich.

However, the flame angel came with what seemed like a white tip near the rear dorsal fin of the fish. It was white at first and I figured it was just damage.

Examining the fish today while it is eating well I'm noticing that the damage is much more extensive.

I believe it to be fin Rot. Can anyone help me identify this disease? At my disposal I have

Crypto Pro
Clout
KanaPro
PraziPro
Levisamole
Melafix

I'm thinking maybe I need to go and get something else. Incoming PICS In a second.

VIDEO HERE

 

[GHsaltie]

Looks like it’s got a bacterial infection. Best treatment would be a combo of furan-2, metroplex, and kanaplex. However I would be concerned about mixing all of those with copper when a flame angel is in the picture. Were the fish showing signs of ich and that’s why you are treating? I am unfamiliar with kanapro, does it have anything other than kanamycin in it? Also on a side note the nano tang is very thin, how long have you had him and is he eating?
@Humblefish @melypr1985 @ngoodermuth, what do you guys think?

 

[Asonitez]

Naso is 2 weeks old same as flame and all are eating

 

[Humblefish]

I agree with @GHsaltie; that's a bacterial infection.

Can you isolate the Flame to a different QT? No need to expose the other fish to harsh antibiotics unless they are showing symptoms.