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This is very difficult. It's done through "venting." The vent is the opening between the anus and the anal fin where the fish will excrete either eggs or sperm. Usually the vent is larger in females. It raelly just depends on the type. In some cases, if there is an "egg spot" on their anal fin, it means that the fish is male.
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoWiki User
∙ 16y agofemales are usually bigger
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Are all fish born females or is it just clown fish?
Yes, the female clown fish is larger than the male.
How do you know if a katla fish is male or female?
A girls cap is bigger and the boys cap is smaller
After a female fish is pregnant what will the male fish do?
the male fish will protect the female if there are other fish. just make sure when your guppies have hatched, they are safe in a other tank.
Can a goldfish lay eggs without a male present?
All fish can lay eggs without a male present. The male and female fish do not meet during reproduction. Eggs are fertilized only once they leave the female's body. The male will come later to fertilize them with his sperm after the female fish has laid the eggs and left
What is the difference between a male fish and a female fish?
The difference between a male fish and a female fish is that the female lays the eggs and the male fertalizes them when she leves.But scientist really don't the main difference.One has a vagina and the other has a penis.
How do you know a silver arowana wether it is male or female?
In order to know if a Silver Arowana is male or female, you need to look at the size of the fish. The male fish are bigger in size.
How can you know if a goldfish is a male or a female?
If the fish is male it will be bright and colourful, if it is female it will be quite dull
How do you know if a painted parrot fish is male or female?
male is huge and grey female is colurful
How do you know if a fish coin is male or female?
What exactly is a fish coin?
How do you know if flowron fish is female or male?
flowron
How do you know is a rosy red fish is a male or female?
the rosy red fish is the boy.
How do you know if a Japanese fighting fish female or male?
the female beta fish is "plainer" than the male as where the male is a darker shade near the face and lighter shade near the tail.
How can know fish male or female?
they females are brighter and the males are paler
How do you know if a pilates fish is male or female?
The males have a red tail.
How do i know my betta is a female?
Your betta fish is a female if she has smaller fins than an average male.
How do you know if a cray fish is a female or a male?
If it tries to pinch you it's a female if it's calm and doesn't pinch you it's a male
Feeder fish How do you tell male from female of the?
Feeder fish, How do you tell male from female of the?
