Why is my male molly chasing my pregnant female Molly?

Why do fish chase pregnant fish?

Their chasing behavior isn’t usually aggressive, unless they feel threatened. Another common cause is related to the size and set up of the aquarium. … If your fish become territorial and aggressive during breeding, it is a good idea to use a separate tank or aquarium for the pregnant fish and their fry.

Do fish chase pregnant fish?

3. Being chased by other goldfish. Chasing only happens once female goldfish, who are ready to release their eggs, start releasing special pheromones into the water. This signals to male goldfish that she is in breeding condition.

Do male mollies eat their babies?

Mollies belong to a class of fish called livebearers. They don’t lay eggs; their young come out swimming. … 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. Gather the babies.

How long do mollies give birth for?

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.

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How do you know when a Molly is about to give birth?

The Eyes of the Fry and Signs of Impending Birth

To accommodate the developing eggs, the mother’s body expands, becoming deeper and broader. A few days before delivery, she develops a bulge below the gills, her outline becoming fairly square in this region, while the gravid spot has enlarged its area.

Why do male mollies chase other male molly?

The reasons why Molly fish will chase each other and seem aggressive has to do mostly with mating rituals that involve attention-seeking behavior. This is when a male molly chases a female molly or aggressively fights off the other male mollies in the tank.

Do male mollies need females?

To avoid breeding, you should keep only males or only females. … Males have a anal fin that points backwards. Females’ anal fin looks just like the rest of their other fins. More than one molly can be kept in a tank together, however, they have been known to nip the fins of others in their tank.

How does a Molly give birth?

Mollies are livebearer fish which means they do not lay eggs but rather gestate their young and give birth to them live. You will not need to do much to get mollies to breed as long as you have males and females in the same tank.

Should I separate baby fish?

After Your Fish Gives Birth

For many species, it’s important to keep fertilized eggs and newly hatched fish, or fry, separate from the adults. Some fish eat their own young while others eat the young of other species. Keeping the fish eggs and fry separate from the adult fish may give them a better chance of survival.

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How do you raise Molly Fry?

Raising Fry

The fry should be fed a quality food, such as baby brine shrimp, baby fish food, or quality flake food ground into a fine powder. Feed the fry small amounts several times a day. Maintain good water quality by performing regular water changes.