Is this fungus?

[Ferretz]

One of my axolotls has this on one of her gills, and it kind of looks like fungus. She’s eating normally, and her tank temperature is 63 degrees. Please help if you can, I’m really worried about her

 

[ellenc]

It does look like fungus. You can treat this with soaks in slightly hypertonic saline. There are instructions in the Caudata Culture section. You will need daily soaks for a week or so. Also a little freshwater aquarium salt in the tank can help prevent recurrence.