Hi Charlie,
Yes of course. The fish was bought about a 3 weeks ago, and after some days it began to grow some kind of abdominal protussion. Area was like in the photo, kind of irritated and red, scales perpendicular to the fish skin. Next day I think that I saw some kind of white point coming out of the protussion (like a pimple), but later it was gone or it was maybe just my imagination. The fish died after 3 days I think... Was really sorry for it and worried for the others, I was fearing that is was some kind of parasite, but after another week the others are healthy... hopefully they stay that way.
Thanks for your help