Goldfish Bubble Eye Fluffy Cotton Stuff On Bubble

[linux44]

Hi All, 
 
I just noticed my goldfish has a fluffy white stuff which are like cotton on his bubble.
 
the bubble looks as if it is infected as it had yellow parts as well. The other thing is , the bubble has also grown in size quite a bit in the past 1/2 days which I just noticed now.
 
so I am not sure whether that white fluffy stuff is fungus or just the old skin coming off and being replaced by new skin.
 
what do you guys think it is ? what the recommanded course of action? I have got another 3 fishes and 1 algea eater in there, should I isolate him ?
 
Does taking the tempreture up and using salt help if it is fungus ?
 
I did call pets at home and they said it is a fungus which only grows on eye and mouth and should be treated but wanted to check before treating them with things which may not be helping at all.
 

 

 

 

[linux44]

unfortunately my fish died. I did try squeezing its chest , opening its mouth and putting the pipe from the air stone in there. Also tried salt bath ( I did put it in a 20 liter tank with 60 litre worth of salt ). Nothing
 
So now I left it in the tank an closed the top with a nylon while the air stone is working in a hope that it is going to come back to life. I love it and don’t want to loose her but think she is passed on .
The reason for leaving it there is, I heard some people saying their goldfish came back to life after few hours.
No gill or mouth movement , really sad L
I did a 90% water change on my 190 litre tank as the nitrate was 0.25 I think ( the purple colour on the api test kit) . also did add salt to the tank.
One of my other goldies seems upset and has been sitting at the bottom of the tank with not much movement , do you guys know what it could be ?
Don’t want to loose any other ones. The pet shop said not to add any fungus treatment if they do not have a physical sign of it so haven’t done anything .
 
Why would fungus kill him in a matter of a day ? that is really sad