Question: A pinch?

[jjusiire9461]

Our beautiful yellow spotted salamander is doign great excpt last week we found what looks like a pinch on the or close to the end of his tail. Should we be concerned if so what do we do for him? He still perky and flirty and eats us out of house and home :c) but that "pinch?" bugs me.
Thanks

 

[Jennewt]

Does he have any tankmates? Can you post a photo?

 

[jjusiire9461]

No he is alone in his enclosure. Never has exposure to any other animals either of any sort. ;(