Axolotl skin change and spots

[Helena.la.lune]

Hi everyone,
Long time using this website but first time posting and joining. I thought I'd share an interesting part of my axolotl journey. My male axolotl started getting spots on him about 2 years ago, and bringing him into an exotic vet to get the skin biopsied showed no abnormalities so I wanted to share and see if anyone else had ever experienced this with their axolotl? I'm in the animal industry as a vet nurse and I've never seen or heard of this before. As you can see on the photos provided they are all small white spots- not fury or spreading but just singular. He started off with one and now has many.

salt baths/ fridging or Indian almond leaves have never reduced these spots either!

 

[Autistic Catholic]

If they're spots and not fungus, then salt baths and fridging are only doing harm and not good.
It's completely normal for axolotols to lose pigmentation and we've had a couple others on here lately with wild types almost essentially end up becoming leucistics.

 

[Helena.la.lune]

If they're spots and not fungus, then salt baths and fridging are only doing harm and not good.
It's completely normal for axolotols to lose pigmentation and we've had a couple others on here lately with wild types almost essentially end up becoming leucistics.

Do you know If there was a cause?

 

[Autistic Catholic]

Do you know If there was a cause?

Honestly, it even stumps scientists. I shared an article that said it may even be genetics.