Tail Rot?

[jdayrit]

Hey everyone , my dragon has been black bearding consistently for about a week and stressed out for the most part. I need help identifying if he has tail rot. How do I prevent it in the future and what caused it.

He is a picture of his tail right after a bath.

 

[AHBD]

No tail rot at all, it's very common for some beardies to have a darker tail end. B.B 'ing occurs with males wanting to mate and/or M/F being stressed or grumpy.