Question:Do swordtails really get a spot on their belly when they are pregrant??
After birth, how long is it before male and female swordtails are fertile to reproduce??
What is the average size of a swordtail fry??
Answers:
Do swordtails really get a spot on their belly when they are pregrant??
Yes, the gravid spot can be seen when the female is sexually matured and this darkens as pregnancy progresses.
After birth, how long is it before male and female swordtails are fertile to reproduce??
Females can store the male's sperm inside of her enough to have 5-6 successive broods without contact with the male, typical gestation period between broods is around 30 days or so.
What is the average size of a swordtail fry??
An average size female can give birth to 25 to 40 fry at a time, but larger females can have brood close to100.
yes, it's really dark and is close to the anal fin.
about 2 weeks i think.
1/8 inch-ish
Yes they do get a dark spot
About 4-6 months
15-30 of them.
yes they do get a dark spot anywhere from a dull grey to black
not really sure on the time periods i have swordtails and guppies together and after almost 2 months one or the other had babies i wont know until there a little older as to which one had them
they can have anywhere from 15-30ish depending
Yes their gravid spot turns dark and sometimes you can actually see the eyes of the fry very close to her having them. Usually the females can have 3-4 batches of fry before having to be in contact with a male again. They can keep the sperm for a few months. As for the average fry count, that would depend on the age of the fish. Livebearers tend to have more fry the older they are. They also have fry every 28 days so I would guess they are fertile right after giving birth.
yes
6 months
15- 50
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