How long is the pregnancy of a molly fish?
Molly fish have an average gestation period of between 20 to 40 days. However, this heavily depends on which variety of Molly you have. For example, dalmatian mollies can stay pregnant for up to 70 days before giving birth.
How long does molly fish take to give birth?
Gestation and Birth
Female mollies will gestate their young for about 60 days. They can give birth to between 40 and 100 fry. Mollies that are young or are having one of their first few pregnancies will tend to give birth to a smaller rather than larger number of fry.
How do I know if my fish is pregnant molly?
This spot generally grows a little in size and changes color during the fish’s gestation period. Similarly, you can confirm your Molly fish is expecting when you notice the gravid spot around its lower body darkening in color. If you’re wondering what causes the spot to change color, that’s simple.