Either a small fungal infection or a bacterial infection of columnarius bacteria. If it went away on its own then you don't have to worry about it, but if it won't go away then try rubbing it with s little dab of potassium permanganate. Along with that raise the salt concentration to about 0.3% this should do the trick.
There is no pink goldfish. However, there are pink tropical fish.
The huge puss-spot is probably a tumor, this is found quite commonly in older goldfish.
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.
Because your goldfish is dead.
who knows. maybe it's sick.
no
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.
A male goldfish developes white spots when he is about to fertilize the females eggs. It could be possible that you have a male and a female! Congrats!!!
Actually, goldfish don't have a specific gender. They are born as females, but as they grow, they turn into males.
if it is not swimming and it lays on its side then it is dead.
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.
rain stain