But here’s an indication of how long each of the popular species is pregnant for: Guppies 21-35 days. Platies 24-35 days. Swordtails 28 days.
How long do swordtail fish give birth?
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 long are fish pregnant for?
As examples, the female swordtail and guppy will both give birth to anywhere from 20 to 100 live young after a gestation period of four to six weeks, and mollies will produce a brood of 20 to 60 live young after a gestation of six to 10 weeks.
How fast do Swordtails reproduce?
Swordtails can produce 50 – 100 fry every time and may give birth again four to 6 weeks after the first birth. It may take longer. According to experts, the second birth session can even take up to a half year after the first, and that can take place even without the presence of a mate.
How do I know when my swordtail is about to give birth?
The Eyes of the Fry and Signs of Impending Birth To accommodate the developing eggs, the mother’s body expands, becoming deeper and broader. A few days before delivery, she develops a bulge below the gills, her outline becoming fairly square in this region, while the gravid spot has enlarged its area.
How do I know when my fish is about to give birth?
Look for the gravid spot on the fish’s abdomen near the rear tail. The spot should appear large and dark when her eggs are fertilized. You will know your fish is close to giving birth when the spot becomes nearly black. Some fish may show white spots instead of black.
Can you tell if a fish is pregnant?
As your female fish becomes pregnant, she will grow a bulge at the back of her abdomen. This typically appears over the course of 20-40 days. Does your fish have a red or black spot? Sometimes, when a female fish is pregnant, she will develop a “gravid spot” on the abdomen.
How do you tell if your fish is pregnant or just fat?
Carrying Eggs – One reason your fish may appear slightly bigger is because it is carrying eggs. If your fish is a female, is not overly fat, and is normal in most other regards, this is a very high possibility. Another indication is if your fish has an enlarged vent; this is where the eggs will come out.
How many days does a fish give birth?
Roughly 28 days. Keep reading to find out how do fish give birth in a tank.
Can a swordtail mate with a guppy?
Guppies and Swordtails are livebearers which means that their babies come out swimming. Like most livebearers, there is not much to getting your guppies or swordtail to breed. If you have a male and a female then you will eventually have a pregnant female.
How do Swordtails mate?
Swordtails mate very quickly, so if you aren’t watching them you could easily miss it. Typically the male will approach the female, often from the side, and may flare his fins in an attempt to impress her. He then swims up close to her and quickly touches her on the underside, near her anal fin, with his gonopodium.
How many Swordtails should be kept together?
Swordtail Fish Behavior and Temperament The swordfish is pretty peaceful and friendly and will gel well with other tank mates. They aren’t necessarily shoaling species, but they should be kept in a group of 5-6 to help them feel comfortable in the tank.
How quickly do fish fry grow?
All goldfish fry have the same physical characteristics for the first 5 weeks, so the growth rate is similar for all varieties up to that age. After 5 weeks the deep bodied varieties start to take their adult shape, so growth rates slow when compared to the slim bodied varieties such as Comets.
How long does it take for a fish fry to grow?
About 3 months, just as long as you provide them with the necessary nutrition and conditions. How long should I keep the fry in a separate tank? Until they are bigger than the other fishes’ mouths.
What do swordtail fish fry eat?
The fry should be fed a quality food, such as baby brine shrimp, baby fish food, or quality flake food ground into a fine powder. Feed the fry small amounts several times a day. Maintain good water quality by performing regular water changes.
Can male swordtails turn into females?
The swordtail, Xiphophorm helleri, Amateur breeders have at times reported sex change in some old female swordtails of their aquaria, and biologists have re- ported sex inversions in domesticated Xi- phophortts helleri. Essenberg (1926) reported two instan- ces of complete sex inversion.
What do I do if my fish has babies?
After Your Fish Gives Birth For many species, it’s important to keep fertilized eggs and newly hatched fish, or fry, separate from the adults. Some fish eat their own young while others eat the young of other species. Keeping the fish eggs and fry separate from the adult fish may give them a better chance of survival.
When do swordtails get their swords?
Babies don’t carry a sword, nor do they have the gonopodium associated with males. For the latter, development occurs first, varying between six and twelve weeks, but with some exceptions. The swords generally don’t begin to emerge until the fish reaches adulthood, sometimes after eight months or so.
Do pregnant fish sit at the bottom?
Pregnant Guppy Fish in Labor One explanation for seeing a female guppy fish hanging out at the bottom of the aquarium is that she’s pregnant and in labor. If you’re keeping both female and male guppies, chances are very high that they’ll reproduce and that the female will give birth to fry.