Possible disease or something on fish

[alexjread]

Hi all,

We’ve just come back from being away for a week and have noticed that our gem rang has some marks/discolouration on its sides, anyone have any idea what this could be?

Thanks in advance

 

[The_Paradox]

SWAG but I’ve seen HLLE look like that.

 

[alexjread]

SWAG but I’ve seen HLLE look like that.

Sorry for being a little clueless, could you enlighten me as to what those are please?

 

[The_Paradox]

Head and Lateral Line Erosion: https://en.m.wikipedia.org/wiki/Head_and_lateral_line_erosion