Why are my mollies chasing each other?

There are many reasons for the mollies to chase each other. Predominantly, a male molly might chase its female counterpart to mate. A male molly may also become aggressive with the other male population in the tank to mark its territory or for the attention of females present in the aquarium.

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Subsequently, one may also ask, why are my fish chasing each other?

Chasing behavior can be of three types: male rivalry to determine dominance, males courting female fish to mate, and females chasing male fish. In this last case females may either want to show they are ready to mate, or want to chase away over-eager male fish.

Furthermore, how do mollies mate? Molly Fishes breed by using the internal fertilization procedure. After the mating of male and female mollies, the ejaculation of male molly allows fertilizing eggs inside the female molly. These eggs remain inside the female molly until the fry mollies are prepared enough and released from the eggs.

Regarding this, can Mollies kill each other?

It is quite possible yes. Depending on the tank size and the number of Mollies in the group. Also the group dynamics of X# males vs X# females and the sudden change in dynamics.

How do I know if my fish are fighting?

In other words, when a more aggressive fish swims toward it, a weaker fish might hide rather than fighting back. There will be visible signs if a fish has been attacked in the tank. Such signs include marks on its body and nips on its fins.

Related Question Answers

Can fish see in dark?

The short answer is yes, some fish can see in the dark and in low light. What humans may interpret as the dark is likely enough light for fish to see, navigate and feed. So this means you can fish the nights away with no worries.

How can you tell if a fish is stressed?

Symptoms: You should observe your fish often for any of these signs of stress.

1. Gasping at the Surface: If a fish is gasping his mouth at the surface, this is a sign of stress brought on by poor water conditions, usually a lack of oxygen.
2. Appetite: If a fish is stressed, oftentimes he will not eat.

How do I know if my fish are mating?

Preliminary Signs Your fish will show signs of mating before the actual mating happens. Look for fish that pair off or groups of males showing interest in a female. In the case of the silver dollar fish, the males will aggressively chase the females around the tank.

How long do fish stay pregnant?

Guppies are highly prolific livebearers giving birth to between five and 30 fry, though under extreme circumstances, she may give birth to only one or two or over 100. The gestation period of a guppy is typically 21–30 days, but can vary considerably.

Why is one of my fish being aggressive to another?

In general, territorial fish are usually most territorial toward fish of their own species. They are particularly likely to be aggressive toward others of their own species that are also the same sex. So, if another fish looks to be of the same species, the same sex and a possible rival, it's likely to be driven off.

Why is my molly fish being aggressive?

There are many reasons for the mollies to chase each other. Predominantly, a male molly might chase its female counterpart to mate. A male molly may also become aggressive with the other male population in the tank to mark its territory or for the attention of females present in the aquarium.

Are Mollies mean fish?

Mollies are not very aggressive, but can protect themselves, so they are suitable tank mates for almost all tropical community tank fish.

Do Mollies eat other fish?

molly fish are live bearing fish and are known to eat their own. Very few fish babies will make it to adult hood in typical aquarium environment. If you want to avoid the older molly from eating the new fish ( I take it those are still babies), move the older molly to a different aquarium.

Are black mollies aggressive fish?

Black Mollies are generally a peaceful community fish, but multiple males kept in the same tank can become aggressive, and females which are outnumbered by males will tend to be harassed. It is often thought that Black Mollies are best served in Brackish waters, but that's not the case at all.

Are sailfin Mollies aggressive?

Yes, Sailfins tend to be more aggressive then other Mollies, especially with the males. I've always had to keep at least 3 females per male, otherwise they get very territorial and aggressive. Usually it's best to have only one male per tank, as rrey said, but it also depends on tank size.

Why do fish bite each other's tails?

there are 2 main reasons why some fish are fin-nippers. The first applies to fish like tiger barbs, which bite small chunks out of other fishes fins as food. The second reason is territoriality (if this is a word). Eg cichlids may nip the fins of other fish which enter their territory to deter them.

Do fish fins grow back after nipping?

Usually, a fish will regrow fins without incident. But sometimes, fin rot and other disease may impair its ability to do so. If you see signs of infection and salt doesn't help, consider purchasing antibiotics from the pet shop.

How do fishes sleep?

The simple answer is yes! They are sleeping, and they can sleep at any time during the day or night. Fish do sleep with their eyes open, because they don't have eyelids (except for some sharks) to close! For fish, sleep is more like a resting period similar to a daydream that humans might experience.

How can u tell a male fish from a female fish?

Males are often slimmer but larger-bodied than females and are more vibrantly colored. The dorsal and anal fins of the male are more pointed, larger and more flowing than in the female. In many species, the male will display egg-shaped markings on the anal fin known as egg spots.

How long is a molly fish 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.

What does a molly fish look like pregnant?

Look for the stomach to change. The pregnant molly fish's stomach will begin to grow bigger and stretch out. View your molly fish throughout the pregnancy. You will be able to detect the eyes of the fry in the molly fish's belly as it stretches, and the spot near the anal vent will get larger and darker.

Can Mollies change gender?

No fish that has its gender determined by its genetics can actually change sex. Some cichlids have the ability to change sex because they do not have their sex determined genetically. That is not true of any poeciliids including mollies, swordtails, guppies or any of the other common poeciliids.

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.

How do you know if mollies are mating?

Distinguishing Between Male and Female Mollies The males will have the gonopodium instead of a normal anal fin. Females tend to look larger and rounder than males. Some males will have elongated dorsal fins, but this is not seen on the females.