If you mean like what breed of goldfish you have then that should be fairly easy. I determined what kind I had by looking at his markings and going on wikipedia. If you go to Wikipedia.com and type goldfish in your search bar then scroll down there will be pictures of goldfish with the breed next to them. It is fairly easy and that's how I found out what my goldfish were.
Before I tell on a goldfish, I try to work the problem out with the goldfish. If I cannot work out the problem, I generally tell the goldfish's Mother or Father in person.
There is no difference
Humans cry. Goldfish do not have the capability to do so.
Female goldfish are usually bigger than male goldfish.
There is no way to tell.
How do you tell goldfish apart there genes
About at 7 to 8 weeks-DANIELLE LANDRY
color
it stops swimming
i want to know how to tell a gender of a goldfish please tell me write back which goldfish is a male and which is a female?
it has a short tail
Goldfish use external fertilization to reproduce so pregnancy in a goldfish is impossible.