How do you know how old a fish is?

Answer 1

well,the faster the fish swims can give you a clue on age like fast swimmer young fish!

the size of the fish compare it to an avrage size then you can find out ur fishs age!

Answer 2

Depending on the living conditions of a goldfish, it's actually quite difficult to age the fish. They can grow quite large if housed correctly, and in some cases, fish that are several years younger than another fish in the tank can appear older due to it's larger size.

Answer 3

Size is a good indicator of age; basically the bigger the older. If you know the exact species and their growth rates and sizes, you might be able to tell their age to within a month or two. For some types, other physical changes can give hints as to how far through their lifespan the fish is (for example, a flounder's eyes move gradually; if they are still on opposite sides of the body the fish is fairly young).

Answer 4

you can tell the age of your common goldfish by looking at the age span where it will show you the age and the size!

Answer 5

You can tell by how many rings are on a single scale.

Answer 6

You cannot tell how old they are but you can tell if they are old or not but checking their back. If it is bent curved, it is old.

Answer 7

Unfortunately, there is no easy way to tell the age of a fish.