There are many kinds of fish. The main edible freshwater fish include carp, grass carp, crucian carp and mandarin fish, while marine fish include yellow croaker, hairtail and flounder. They all have the characteristics of tender and delicious meat and rich nutrition, and are good sources of some vitamins and minerals. Good fish are: goldfish, peacock fish, anchovy, swordfish and arowana.
1, goldfish
Goldfish is also called national treasure fish. Traditionally, goldfish is called "feng shui fish", which can not only make up for some defects of home feng shui, but also make the house full of vitality and trigger infinite vitality.
There are about three colors: silver, red and black. According to Feng Shui, silver and red goldfish can make money, and black goldfish can ward off evil spirits. However, it is not appropriate to keep only black goldfish in the room, because it is easy to attract evil spirits into the room by keeping only black goldfish.
2. peacock fish
Peacock fish is a very beautiful tropical ornamental fish, with colorful body and beautiful and natural figure, which is deeply loved by people. Distributed in the lower reaches of rivers in some tropical areas, the wild habitats are diverse, mainly distributed in freshwater basins and lakes. It has strong reproductive ability and can tolerate polluted waters. It has the reputation of "a million fish" and has a gentle temperament. Can be mixed with medium-sized tropical fish, usually lively and active.
Step 3 swallow fish
Swallow fish, also known as angelfish and angelfish, is diamond-shaped, with extremely flat side, straight tail fin trailing edge, dorsal fin and gluteal fin extending backward, and symmetrical up and down, like an open sail. The ventral fin is long and filiform. From the side, it looks like a swallow flying in the air, so it is also called swallow fish.
4.swordfish
Red swordfish looks like a spindle, and the original species in nature are light blue and green. The lower edge of the male fish's tail fin extends out of the needle fin, commonly known as the sword tail, while the female fish has no sword tail. Swordtail fish is an indispensable species in aquarium. Through artificial propagation, its body color is more abundant, with three colors: red, white and blue. Its representative fish are red sword, green sword, white sword, black fin red sword, black fin white sword, mandarin duck sword and so on.
5. Arowana
Arowana is oval with flat sides, medium-sized head and large eyes. Located in the center of the head, it has a long arc from the chest and abdomen to the end of the tail stalk. The ventral fin is located in the chest and has degenerated into a silk tail, which plays the role of a tactile organ.
The adult fish is about 10 ~ 15 cm long, with blue-gray body and light yellow abdomen. Under the weak light, its body emits colorful violet, with three black spots on its side, gray dorsal fin, anal fin and caudal fin, and white pearl spots on each fin.