Help is something wrong!! (tip of tongue black)

[BloodMoonBornAgain]

As I was letting my giant Day gecko lick honey off my finger I noticed his tongue was black on the tip. Is this normal or is there something wrong.

 

[acpart]

Not a clue. Can you take a picture?

Aliza

 

[BloodMoonBornAgain]

 

[acpart]

I think it's just kind of dark red and should be fine.

Aliza