There are many varieties of goldfish, according to the form can be divided into lion head, flat head, goose head, pom pom head, etc., according to the body color can be divided into black, gray, red, blue, white, miscellaneous spots, five flowers, etc..

Common varieties include tiger head, golden carp, butterfly tail, ink moor, red high head, red longan, purple moor, grass goldfish, four ball moor, moor high head, red head moor, panda goldfish, five flower moor, purple and blue flower moor, transparent scale moor, twelve red moor, magpie flower moor, red and white flower grass goldfish and so on.

1, grass species of goldfish is the most common goldfish species, grass goldfish, including swallowtail grass goldfish fish and ordinary grass goldfish two kinds of goldfish, this kind of goldfish is very easy to raise, the price is also lower varieties of categories are relatively single.

2, Wen species of goldfish is the most varieties, the most categories of goldfish species, this kind of goldfish is characterized by a short body, the fins are longer, with a dorsal fin, caudal fin bilobed. Among them Wen species of goldfish can be divided into five broad categories.

3, the most obvious characteristics of the egg species of goldfish is the back without dorsal fins, short body, no dorsal fins, shortened body shape, round like a duck egg. There are two types of caudal fins: long tail and short tail, the short tail is called "egg", the long tail is called "danfeng", and all other fins are short. High-quality egg breed goldfish have a rounded, curved back, with the highest point in the center of the dorsal spine.

Expanded Information

The goldfish belongs to the same taxonomic group as the crucian carp. Compared with the crucian carp, the goldfish has undergone tremendous variation in external morphology, but in general the entire body of the fish can be divided into three parts: the head, the trunk, and the tail.

The foremost part of the head is the mouth, with the snout, eyes and gill covers at the rear. Some varieties have sarcoma on the upper end of the head, some varieties have a pom-pom above the nose, some varieties of eyes protruding, position upward or blisters, and some varieties of gill cover leakage to form gill flap. Goldfish trunk body clad in scales, mainly normal scales, transparent scales and pearl scales. Its side has a lateral line, different varieties of goldfish lateral line scales, lateral line scales and the number of lateral line scales are not the same.

Goldfish have a gentle temperament and generally live for about six years, or longer. The goldfish is an omnivorous and partial carnivorous freshwater fish with well-developed pharyngeal teeth that allow it to swallow harder baits. Goldfish have a strong ability to adapt to the water temperature, but can not adapt to the drastic changes in temperature, its appropriate water temperature in the 18-26 ℃, the temperature is too high or too low will affect the goldfish feeding and growth and reproduction.

The goldfish prefers weakly alkaline water, and the pH value of the water body is more suitable at 7.5-8.0.

When the water temperature starts to rise during the transition between spring and summer in the north of China, the goldfish also enter the breeding period, and the water temperature during this period is controlled at about 20 degrees Celsius, which is more conducive to the spawning and hatching of goldfish.

Baidu Encyclopedia - Goldfish