How many days does a molly fish stay pregnant?
The gestation period of a molly fish is around 60 days. Female mollies can store sperm for months and may fertilize eggs as often as every 30 days, even when no male is present in the tank. Mollies may release 10 to 60 live fish at a time.
Do molly fish have all their babies at once?
Do molly fish have their babies all at once? Mollies give birth to live babies. They are very easy to breed for the most part, and a single female molly fish can produce over a hundred baby mollies at one time.
How can you tell if a Molly is pregnant?
How to Tell if a Molly Fish is Pregnant?
- Watch for any behavioral changes in your female molly fish. …
- Note if a dark triangular spot has appeared near the anal vent.
- Look for the stomach to change. …
- View your molly fish throughout the pregnancy.
Will mollies eat their babies?
Cannibalism is normal with mollies and other livebearers like guppies and platys. As fecund as they are, you don’t really need to worry about saving every last one.
How often do mollies give birth?
Once the female is impregnated, she can give birth to as many as five or more broods of young at intervals of four to six weeks. The number of each brood may vary from 12 to 15 babies from a young Mollie to as many as 150 young from a large swordtail.
Do pregnant mollies hide?
A gravid molly will have a change in behavior, usually becoming slower, and tend to hide more than is normal only coming out to feed. Your fish might also become more aggressive to tank mates, particularly those that venture into her hiding spot.