Hola, iam Lillian Vasquez, I hope all goes well today.

Why Is My Fish’S Mouth Swollen? [Solved]

Yikes! Mouth fungus is a nasty fish disease caused by bacteria that can really do a number on your fish. It produces a cotton-like growth in the mouth, making it hard for them to breathe and even eating away at their jaws. But don’t worry, there are treatments available like antibiotics and other meds you can buy.