It is crucial to seek professional help from a qualified veterinarian specializing in fish health.
Black spots on goldfish can be caused by various factors, including:
* Bacterial infections: These can be serious and require immediate treatment.
* Fungal infections: These can also be dangerous and require proper medication.
* Parasites: These can cause irritation and stress, leading to black spots.
* Stress: Even stress can manifest as black spots on goldfish.
Only a veterinarian can properly diagnose the cause of the black spots and prescribe the appropriate treatment.
Here's what you can do:
1. Observe your goldfish carefully: Note any changes in behavior, appetite, or appearance.
2. Contact a fish veterinarian: They can examine your fish, run tests, and determine the best course of action.
3. Follow your veterinarian's instructions carefully: This includes medication, water changes, and tank maintenance.
Remember, attempting to treat your goldfish yourself without proper diagnosis can be harmful. Always seek professional help to ensure your fish receives the best possible care.