I wanted to know if a 10" henlei will heal from a bad heater burn on its back? its about a 5" by 1/2" burn . this is not my ray . i was trying to buy it before , now the person selling it showed me a video ;its eating fine but im worried about infection and passing anything onto my group of healthy rays. please pm me . its burned so bad you cant see the white spots on that side. seems fine other than that.