So I have bought a ton of eels since I have started the hobby, they have tons of personality and my hawaiian dragon eel the first thing guests look at in my display reef. However, I have always thought eels were disease resistant, so I about I relatively healthy snowflake eel. Until he got nose cancer and passed away recently. This was confirmed by an autopsy by a vet. When I did buy him though, he did have brown streaks on his snout. I went to my lfs (which is a really good lfs), all of the big snowflake had some brown streaks (not as bad as the one I purchased). What does this mean? Are there anything else I should be looking for in a snowflake eel?