What do tumors on a goldfish look like?

- Unusual growths or bumps on the fish's body.

- Changes in color or texture of the skin, such as red, white, or black patches.

- Lesions or ulcers that appear raw or open.

- Protrusions or growths that extend from the fish's body, including the mouth, nostrils, or fins.

- Asymmetry in the fish's body, with one side appearing swollen or disproportionately larger.

- Difficulty swimming, buoyancy problems, or loss of balance.

- Skin discoloration, especially the appearance of dark or pigmented patches.

- Weight loss or general deterioration of the fish's health and behavior.

It's important to keep in mind that not all growths or changes in appearance are necessarily cancerous or malignant tumors. Some may be benign growths, cysts, or other conditions. If you observe any unusual changes or suspect a tumor in your goldfish, it's best to consult a veterinarian experienced in fish health for a proper diagnosis and appropriate treatment.