There are many kinds of ornamental fish. Below, petnet will introduce some common ones.

Ovoviviparous, the fish family Cyprinocdontida

Ovoviviparous, that is, the mother fish gives birth to small fish. The fish of this family have been artificially bred, and many varieties have been cultivated, with more and more types. Most of them are small and medium-sized fish with a body length of 20cm. Water quality that needs to be paid attention to when raising ovoviviparous fish. Almost all undergraduate tropical fish are suitable for weak alkaline water quality, and they hate water quality changes caused by water changes, so it is necessary to prevent all water changes. In addition, do not feed too much bait, and pay attention to whether the filter function is reduced so that the water quality does not become acidic.

Oviparous fish family Cyprinodontida

Mostly small fish, some species of male fish have very beautiful patterns on their bodies And color, very popular. Violent and very aggressive. Therefore, it is not suitable for polyculture with other fish, and even polyculture of the same species should be prevented. Male and female fish are the easiest to distinguish by color. Males are beautiful in color and have tall and long top fins. Not easy to feed. Likes old water and is very sensitive to changes in water quality. Suitable for weakly acidic water. Not suitable for new breeders. Reproduction is difficult. The dry and rainy season in the origin is obvious. When the fertilized eggs are released in the dry season, they need to be placed in the soil and hatch when the rainy season arrives.

Cyprinida

It is distributed worldwide. There are many kinds of large, medium and small fish, about 1,600 kinds and about 370 kinds produced in China) are the most kinds of fish. Cyprinids are characterized by the presence of throat teeth in the throat of the fish, which is an important basis for taxonomy. In addition, it can be divided into must-haves and unneeded classes. Mouth whiskers and beautiful scales constitute the characteristics of the carp family. The reproduction method is relatively simple, and the unique color of the mating period will appear during the spawning period. All are oviparous, and their spawning habit is that males and females swim side by side, and females lay their eggs on aquatic plants or on the skin of palms. The eggs are transparent, and most of the fertilized eggs hatch in about 2448 hours. After 23 days after hatching, the larvae consume the nutrients of the oocysts and start swimming.

The cyprinidae Characinida

Also known as the Tetraidae or Galacinidae. Mainly in Africa and America. The characteristic is that the second dorsal fin is an adipose fin. Another characteristic is the presence of teeth in the mouth. There are many kinds of ornamental fish, which are mainly small, easy to raise, beautiful in appearance and low in price. Weak acid soft water should be used. The suitable water temperature is 2230℃. If you like to live in groups, you should reduce the number of fish in the same aquarium and increase the number of fish. It prefers animal feed, and mostly feeds near the water surface, and rarely forages at the bottom of the tank.

Anabantida of the family Anabantida

The Siamese fighting fish from Thailand is the most representative. There are about 38 species of fish of different sizes, ranging from 360cm in length. The main feature is that there is a special breathing organ called attached gills that can breathe air and survive in the absence of oxygen in the fish tank. The temperament is rough, and the males are aggressive, so it is called Betta. Another feature is that most fish will spit bubbles to form bubble nests, and then lay eggs, hatch and raise young in the bubble nests. It is not picky about water quality and bait, and it is easy to raise.

Cichlida family Cichlida

Also translated as mouth-brooding fish family. There are many kinds of fish in this family, rich in color, and most of them are medium and large. The most representative ones are angelfish, colorful angelfish and so on. Features: Take care of small fish in every possible way, even hold the eggs in the mouth to hatch, and do not eat during mouth hatching; care for the larvae after hatching; freely choose objects into African cichlid and American cichlids. American cichlids, such as angelfish, colorful angelfish, etc., are the most popular species of fish.