Is this gill fungus?

[allcreaturesbrett]

Just noticed white fuzzy areas on a couple gill branches. Is this fungus? Would salt baths be the right course of action? Would fridging be necessary with the salt baths? Thanks!

 

[Ludghens]

It definitely looks like fungus, but don't take salt baths as the first and only measure. They are very stressful for axolotls and irritating.
Here's a useful guide for treating fungus.

Fungus

There has become a trend in the forum to use salt bathing as the first line treatment for axolotl fungus, in many cases it is unnecessary. Salt bathing is a highly effective treatment but is a harsh one, it is irritating to the axolotl and removing it from the tank may cause stress. I have...

www.caudata.org