Oviparous

Fish whose eggs are fertilized and hatch in the outdoor environment.

The term "oviparous" designates the species of animals that lay eggs. In the field of aquarophilia, this means that certain fish are oviparous, that is to say that they lay eggs that hatch and give birth to fry (young fish).

Oviparic fish are generally easier to raise and maintain than viviparous fish (which put in the lower alive), because they do not need to take care of their young once they have laid their eggs. However, they often require special attention when egg eggs lay and hatch, because they can be very sensitive to variations in water parameters (pH, temperature, etc.).

There are many species of oviparous fish worldwide, some being very popular with beginner aquariophiles, while others are more suitable for experienced aquariophiles. The most common oviparous fish in aquariums are guppys, mollys, plasses and swordtails, which are all "firewall" fish.

Oviparous fish can be classified into two categories: benthic oviparous fish, which lay their eggs on solid surfaces (such as plants or rocks), and free oviparus fish, which lay their eggs in the water. In both cases, it is important to ensure that the environment of the aquarium is conducive to laying and hatching of eggs.

For benthic oviparous fish, this means that the aquarium must be equipped with solid plants and surfaces on which they can lay their eggs. It is also important to maintain a pH and a stable water temperature and to filter the aquarium well to avoid contamination of eggs by bacteria or parasites.

For free oviparus fish, it is important to ensure that the aquarium is well ventilated and that the water is well oxygenated, because the eggs need a lot of oxygen to survive and hatch. It is also recommended to set up egg protection devices, such as nets or egg boxes, to prevent them from being eaten by other fish or snails.

It is also important to regularly monitor eggs to make sure they hatch well and that fry are healthy. If the eggs are not fertilized or if they are damaged, they can rot and contaminate water from the aquarium, which can be dangerous for other fish. If the eggs hatch well and the fry is in good health, they can be fed with special foods for fry until they are large enough to eat solid foods.

In conclusion, oviparous fish is an interesting option for aquariophiles who wish to raise fish from eggs. However, it is important to ensure that the environment of the aquarium is suitable for egg -eggs laying and hatching and regularly monitoring eggs and fry to ensure that they are healthy.