The first thing you have to do is look after the fishes water properly. (The poison (ammonia) in the water is what has caused the fungus). The basic rules for keeping fish are:- 1 inch of fish needs a minimum of 1 gallon of water, all fish need a cycled filter running permanently and a fish tank should have at least 50% of its water changed every week. A goldfish grows to around 10 inches so it should be in a tank that holds at least 10 gallons of water (Nominally a 13 gallon tank or larger). You can get fungus cure at a pet ashop but it will do you no good at all if you don't follow the basics I have just given you and look after the fishes water properly.
If your goldfish has red patches, is losing its tail and has a fin clamped shut, this could mean that it is sick. You should take it to a vet if possible.
Having your goldfishes tail turn white could mean your goldfish is sick but it could also just be new tail growth.When goldfish grow new tail tissue it may appear white or grayish.This usually happens when a goldfish isn't fully grown .If it is new tail growth than it will be on the end and tips of the fish's tail not the whole tail.
stretch a normal gold fish tail
If you mean falling off then NO. But if you mean like the skin comes off, it happens occasionally and nothing is wrong.
The butterfly tail goldfish usually measures in at 6-7 inches. They are condsidered to be medium in size compared to other goldfish. Their closest relative, the fantail goldfish, is slightly smaller at about 4-6 inches in length.
The shape of a fishes tail is decided by its genetic makeup. There is no "treatment" for a bent tail.
it has a short tail
it only has a small tail
My goldfish Fan tail is attacking my small gold fish, they have been together for over a month now but has only recently started to nibble at the smaller goldfish, how can i stop this
when a goldfish puffs it puffs out what it was chewing on
as long as the tail is removed first.
because fish are cannibals