How do you tell the difference between male and female swordtails?

Only male swordtails have the tail fin extension. Females have a rounded tail fin. Females’ bodies are also more rounded, fuller and about one-half-inch longer at maturity.

Can a male swordtail turn into a female?

No, female Swordtails can’t change their gender. When there is a dominant male in a group of Swordtails, other less dominant males hold back their development, giving the appearance they are female.

Where are swordtails found?

Xiphophorus is a genus of euryhaline and freshwater fishes in the family Poeciliidae of order Cyprinodontiformes, native to Mexico and northern Central America. The many Xiphophorus species are all known as platyfish (or platies) and swordtails.

Where do swordtails come from?

Swordtail fish (Xiphophorus helleri) are an ever-popular freshwater species that come from North and Central America. They belong to the Poeciliidae family and are closely related to other common fish like the platy and guppy.

How do you know if a swordtail fish is pregnant?

Get Set. Scrutinize the pregnant female’s body daily. As her time nears, the bottom of her swollen belly will begin to appear slightly square and she’ll look light she might burst. A large dark spot will develop on each side of her body near the anus.

How long do swordtails stay pregnant?

28 days
Like other livebearing aquarium fish, swordtails (Xiphophorus hellerii) give birth to live young, or fry, rather than laying eggs. Although the swordtail’s gestation period is 28 days, it may be difficult to determine when she became pregnant.

How do you breed swordtail fish?

Swordtails are livebearers, meaning they will give birth to live fry instead of eggs. Swordtails readily breed when kept in an aquarium of mixed sex, requiring little intervention. The young are very easy to rear and can be raised in the same aquarium as the adults.

How often do swordtail fish have babies?

every four weeks
Swordtail Fish are Livebearers A female swordtail can produce offspring as often as every four weeks.

How long are swordtail fish pregnant for?

Do swordtail fish breed?

Swordtail Breeding & Fry Swordtails are livebearers and will give birth to live young. Livebearers are an excellent fish to practice breeding because they will often breed with minimal intervention from the owners.

What happens to a swordtail fish after it gives birth?

On the days leading up to birth the Swordtail will become lethargic, may not eat, may hide toward the rear of the aquarium and very territorial. After birth it is important to remove the mother from the breeding tank to ensure the best chance of survival for the young fry.

How many swordtails should be in a tank to breed?

NOTE: If you intend to breed swordtails, there should be more females in the tank than males. One male to three females is usually recommended for the highest chance of success.

Are livebearer swordtails free swimming fish?

Livebearer young are free swimming and fairly large when born, they have a much higher chance of growing to adulthood than fish raised from eggs. NOTE: If you intend to breed swordtails, there should be more females in the tank than males.