Is my axolotl have mouth fungus

[Lung]

Is my axolotl have mouth fungus?
I am in Malaysia and this May very hard for us to control the water below 20c any suggestion. And I am not confirm wat happen to my axolotl.

 

[LSuzuki]

I can't tell from the picture if it is fungus. Is it fluffy like cotton fibers?

To keep the water cooler: 1) Do you have a fan directed so that the air blows across the surface of the water? That will cool the water a lot. 2) Do you have more of the styrofoam that is under your tank? You can use that on the sides and back of the tank as insulation.

You should not have gravel in the tank since axolotls eat it sometimes.