Experience is just about the only way most people can judge the age of a goldfish. It is possible to tell if you are prepared to risk damaging the fish and can get a scale. Then using a microscope you can count the rings on it as you would the rings on/in a tree. This will give you growth spurts and seasons.
you can sell goldfish at the age of 604 and 3/4
A female or male goldfish can be any colour. The colour of the fish does not determine the sex of the fish.
Only a dna test can determine.
No, both male and female goldfish's tails are the same length. The sex of a goldfish does not determine how long a goldfish's tail will be. Usually the parents and what type of variety of goldfish the fish is will.
goldie age 44
Well, they have to be mature also, which is about a few years of age.
if you're refferring them to being young then no
About 20 years and up
gold fish can be mosely eny age
Without counting the rings on a scale a fishes age can only be estimated.
That would normally be a pet shop, but to get a female goldfish you would need to go to a pet shop specializing in fish, and have them determine which were female.
A goldfish's dorsal fin may be down due to stress, illness, poor water quality, or injury. It is important to monitor your goldfish's behavior and environment to determine the cause and address any issues promptly.