To my knowedge there is no proven cure for dropsy. Some pet shops carry medications that 'claim' to cure almost every disease and problem including dropsy but I have never heard of them working successfully on dropsy. I would euthanase the fish.
That is what Ryunkin Goldfish look like. If however, the fishes scales are sticking out like a file or rasp, the fish is suffering from a fatal disease called Dropsy. There is no known reliable cure for Dropsy. There are expensive medications available at pet shops that make the claim to cure Dropsy but in my experience they do not work.
Dropsy isn't a disease in itself. It is a symptom of another problem. The only thing you can do for dropsy is treat with a strong medication. I would use Maracyn I and Maracyn II in combination and keep the water very clean. That is your best bet.
Huh? Come again? As far as I know, (sorry,) Goldfishes do not, um, become pregnant. Instead, they lay eggs. Your goldfish is most probably either down with dropsy (touch wood, okay? There is no cure for dropsy) or laden with eggs.
Dropsy Serious and difficult to cure, the fish's body can become so bloated that the scales protrude. It would just be at the bottom of the fishtank or pond and it would look like santa that has ate too many pies and he is sleeping on a bed with his eyes open
Dropsy is the former name for oedema
In a fish, dropsy is fluid buildup. This fluid retention can be a symptom of a serious problem, such as a type of infection.
Most types of fish can get dropsy, although in my experience, it is more common in live bearers and tetras.
Dropsy
Dropsy
swelling or edema
When a goldfish becomes bloated in appearance and all the scales start sticking up then the fish has dropsy, a terminal condition. Dropsy is the result of a build-up of fluids caused by organ failure. The reason for the symptoms of dropsy is either an internal bacterial infection or poor water quality. By the time the fish starts to have raised scales there's nothing else you can do for it - so don't waste your time or money on the types of medications you add to the water that say they "cure" dropsy-they'll only burn the fishes gills and make its last few days on earth even more miserable.
Jean Baptiste Emile Dropsy was an Art Nuveau jewely engraver....died in 1928. His work was exquiste!