It is quite possible that the black spot is part of the fishes colouration. Goldfish often have many different colours in many different shapes and shades anywhere on their bodies or fins.
The huge puss-spot is probably a tumor, this is found quite commonly in older goldfish.
probably
I am unaware of "Black Spot" being a disease of fish. So I would say no.
A red spot on a goldfish's head could be caused by a bacterial infection, parasitic infestation, or physical injury. It is important to monitor the fish's behavior and consult a veterinarian for proper diagnosis and treatment.
Actually, goldfish don't have a specific gender. They are born as females, but as they grow, they turn into males.
The appearance of a white spot on a goldfish's head is typically caused by a parasitic infection known as ich, or white spot disease. This is a common condition in aquarium fish and is characterized by small white spots on the fish's body and fins. It is important to treat ich promptly to prevent further spread and potential harm to the fish.
No, only black goldfish are black.
The most effective goldfish white spot treatment available on the market is a medication called "Ich-X" which is specifically designed to treat white spot disease in goldfish.
It would look like a black spot on your back.
No, I have never experienced a goldfish bump on my head.
I would name my black goldfish Fin
A goldfish with a red head has a distinct coloration that sets it apart from other goldfish. The red head is a unique feature that makes it easily recognizable.