As I’ve mentioned above, mollies are usually pregnant for a period anywhere from 20 to 40 days (average 30 days). Of course, that would be how long they’ll last from conception to birth. But before this period, there is usually a courtship period between the male and female molly, which can last another couple of days.
How long do fish stay pregnant?
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.
Will Molly fish eat their babies?
It is because the mollies are very nippy and tend to become very aggressive eater. They will eat almost anything that fits in their mouth. The new born babies are very small just about the size of a pellet food which is why molly are seen eating their own babies after giving birth.
How often can molly fish have babies?
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.
What is the lifespan of molly fish?
The molly fish lifespan is two to five years. This freshwater fish is not known to live a long life. Their lifespan actually depends on the environment you provide when keeping them as a pet. The water conditions impact the lifespan of mollies as they are prone to diseases if the water conditions are poor.
How long does a molly fish live?
The average molly fish lifespan is around three to five years. While they aren’t the longest-living freshwater species out there, there is some wiggle room depending on what species you get. The quality of care you provide will also impact their lifespan significantly.
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 many babies do mollies give birth to?
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.
Will baby mollies survive?
Mollies belong to a class of fish called livebearers. They don’t lay eggs; their young come out swimming. Molly babies get no protection from their parents. The tiny fish are just as likely to be eaten by their own mother as they are by other fish in the aquarium, so to survive they’re going to need a little help.
Can Mollies change gender?
Mollies are not able to change gender. The gender of these fish is determined by their genetics so it is impossible for them to change sex.
Why is my Molly hiding?
New Surroundings. If a fish has been recently added to the tank, the most likely cause of hiding is that it is simply feeling nervous about its new surroundings. Given a few days, a new fish should become comfortable with its new home and spend more time out and about.
Where is the gravid spot on a Molly?
The Gravid Spot Is Very Visible The spot is triangular in shape and gets darker and larger the closer a molly is to giving birth. The spot is located towards the anal vent of the pregnant Molly.
Can a Molly live alone?
Yes, a single Molly Fish can live alone as long as she has all that she needs: clean water, good food, and enough space to swim and play in. Please don’t forget though, that she will be happier with tank mates—whether fellow Mollies or other compatible fish.
How do mollies mate?
The Basic Mating Behavior of Black Mollies When black mollies mate, the male will transfer milt, the fluid that contains his sperm, into the female’s body using is gonopodium. The gonopodium is a special anal fin that is shaped like a rod rather than a normal fin.
Do mollies clean the tank?
Mollies are famously undemanding fish that will fit well in the aquariums of beginners or inexperienced aquarists. Indeed, Mollies can help you keep your aquarium free of algae and relatively clean. They do so by picking and eating the algae that naturally grow on the rocks and plants of your aquarium.
Can mollies mate with other fish?
Albeit there being several varieties of molly fish, they all can be mated because regardless of the color or fin configuration, they are the same species, and any male will readily fertilize with all females. So, put simply, different colors and shapes of mollies are still the same fish and will readily breed.
How do I keep my molly fish happy?
Sandy substrate is recommended just so you can keep vegetation in your tank. To keep them happy, give these little fish with big personalities with things to do like tall plants to hide between. Satisfy their natural curiosity with artificial caves and rocks to explore.
How do I stop my molly fish from breeding?
How to Avoid Unwanted Fish Breeding in Your Tank Buy only one gender of fish, preferably males. If you don’t have male and female fish together, there is less chance for baby fish to appear. Choose egg-laying species rather than live bearers. Adjust tanks conditions to make breeding less comfortable.
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.
Do fish give birth out their mouth?
This process is called mouthbrooding. Sometimes the female fish will carry the fertilized eggs in her mouth, or the male and female will trade off, which is called biparental mouthbrooding. Typically fish that are born via mouthbrooding are underweight at first and require recovery time to feed and grow.