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.
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 mollies eat their babies?
In a breeding net, the fry are exposed to the same water conditions the rest of the tank is experiencing. 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.
Do mollies poop a lot?
Mollies usually poop a lot when you overfeed them. However, this behavior is also expected in pregnant mollies before giving birth. … Some pregnant mollies eat food in such small quantities that they are incapable of manifesting this behavior. But if your pregnant molly is eating a healthy amount, it will poop a lot.
How many mollies should be kept together?
Keeping Molly Fish Together
You should keep them in groups of at least four or more, they naturally stick together. The group should be made of mostly females since males are known to harass them.
Why are my molly fish sitting at the bottom of the tank?
When a fish usually sits on the bottom for a long time, it is usually a sign of stress, exhaustion, water quality problems or in livebearers it could mean they are due to give birth. Oxygen Content. This is likely to be a problem if the water is too warm or too cool. …
When should I separate my pregnant Molly?
Most mollies will isolate themselves from the other fish just prior to giving birth. With enough time you will get used to the mollies normal behavior and be able to easily tell when she is about to have fry. For the time being, separate the molly when she gets truly large.
Can baby mollies live in a bowl?
No, you can’t keep molly fries in a bowl. There isn’t enough filtration and hiding spots for fries. You will not be able to place a heater in a bowl, that is normally made from plastic.