How do Aquarium Fish Breed?

Breeding fish in your aquarium can be an endlessly captivating hobby. You can watch as varieties of fish breed in different ways to bring their young into the world. Watch as these tiny fish grow into healthy colorful adults right before your eyes. Before you delve into the world of aquarium breeding you will need to learn a few things about the different ways fish breed. Fish breed in one of two ways. They either lay eggs or they give birth to live babies.

Fish that have live babies give birth to young that are fully formed and able to swim. Females will carry the babies inside for approximately four to five weeks after the males fertilize them. Once the babies are born they will look for food. Guppies, platies, swordtails and mollies are breeds that give birth to their young live. Females are generally identified as the larger fish and they become fertilized by the male with its gonopodium or anal fin. Once a female is fertilized they are then able to give birth multiple times without the aid of the male.

The amount of time an egg laying fish goes through the process of hatching young varies from fish to fish. The most common amount if time is from one to two weeks. When the fish are hatched they will still have a sac attached to them, which provides nourishment during their early life. As the young fish grows the sac goes away.

The method that fish use to lay their eggs varies from fish to fish, as well. Some scatter the eggs across the bottom of the tank. The male fish will chase after the female while they are breeding. The eggs will be fertilized during this breeding technique and are usually ready to hatch in a matter of weeks once they land. Some fish that lay eggs choose a specific spot for the fish to be fertilized. They will attach the eggs to rocks, plants or the glass of the aquarium. The males then fertilize the eggs. There are even fish that lay the eggs on a nest produced by the male. The male fish blows bubbles that keep the eggs above the surface and oxygenated. Then there are the mouthbreeders that keep fertilized eggs in their mouth until they are ready to hatch.

As you can see there are many varieties of breeders in the fish world. It is an interesting hobby and one that can provide hours of entertainment as these fish go through their cycle of life. Check out your fish and see what kind of breeding methods they use to carry on their fish family.

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