1. I couldn't tell if it was slimy or not, but I would guess no
2. It appeared as if the skin was "coming off" kind of--but when he turned to face me, the "white patch" looked raised, not depressed (if that makes sense) Also, I never saw any blood.
3. Don't know--haven't checked ph in a loooooong time. Last time I checked my dkh
it was 11
Another thing I just remembered was that the next day when it was real bad, it looked as if he was starting to get fin rot.....all of his fins were starting to look as if there were chunks missing off the ends of them.