What happens when your betta fish have a white lump on its throat?

A white lump on a betta fish's throat may indicate a few potential issues, such as a bacterial infection, a parasite, or even a tumor. It's essential to observe other symptoms, like changes in behavior or appetite, to determine the severity of the condition. If the lump persists or worsens, it's advisable to consult an aquatic veterinarian for proper diagnosis and treatment. Maintaining good water quality and a stress-free environment can also help prevent health issues in betta fish.