Question: Strange axolotl gill fluff?

[headFeed]

Not sure what these dark red curled things on his gills are, blood vessels perhaps? He had this for a long time now, not exactly sure when it came up. In the picture he recently ate so his gills are red, but you can really see the two gill fluffs that are really red.
In the second picture you can see that the gill with these dark red things is darker than the others too, and is the only one that's curled forward.
Other than this he seems fine as always, just curious about these things on him.
So should I be concerned, will they be staying forever or go away eventually?

 

[charleybambino]

You are right in assuming they are just blood vessels. They may always be a bit more prominent...but no cause for concern