hole in head contagious?

[mytank90]

ya they had a blue face and a empire angle both with hole in head .they looked gross but i see no sighs of it on the other angle they had

[reefermadness]

Its environmental......basically the fish are living in a poor environment which brings on HLLE. It can actual reverse itself in the right environment.....or so I have read since Ive never owned a fish with this disease.

[Coralgurl]

We had an oscar with hole in the head and did everything we could to heal it. It never did but at times seemed better. It also moved around the fish's head. Had him for over 5 years before he died. He was in the tank with 2 pleckos and they were not affected.