Glass Catfish Problem.

[JohnW171]

Hi guys,
I've had 6 glass catfish for a little less than a year now, and i've noticed a white spot on one of em. Its on the fin running along its underside. Over the last few days its kinda started to bubble out either side of the fin. There is only one spot on one fish. It doesn't seem to be botherin him.

Any ideas?

 

[M.R Otter]

Well I'm not sure about it.... but seems to harmless, some pictures would be nice and helpful!

 

[OpalineAqua]

Yea if it's not affecting the fish's behavior it might not even notice it's there.