One eye with a bubble

[blacktarotannis]

So when I first saw this it didn't look anything like this the other day. Today I was like wtf. Only one eye has a bubble on it. I'm wondering what it could be. I have never seen this before. Anyone know what it is? It took me a good while to catch the fish.

 

[blacktarotannis]

I know the pic isn't the best I'll try and get a better one.

 

[longv]

same thing happened to my silver dat. did daily water changes and added salt for about a week and it went away

 

[blacktarotannis]

Did it look like a bubble within a bubble?

 

[longv]

yea the whole eye was bubbled up and then there was another smaller bubble