Classification and feeding requirements of goldfish species

Goldfish is a kind of ornamental fish raised by many families in modern families, and the Chinese goldfish, known as the "queen in the water", is known as one of the two famous ornamental fish in the world because of its unadorned natural beauty. So how are the species of goldfish classified?

I. species of goldfish

According to the similarities and differences of external morphology and genetic relationship of goldfish, they are generally classified into four categories: grass goldfish, dragon eye fish, salmon and egg fish.

1. Grass goldfish

The body shape is like crucian carp, is the oldest kind of goldfish, directly originates from gold crucian carp, the body color is orange or fiery red, there are pairs of anal fins and caudal fins, grass goldfish body is spindle-shaped, caudal fins are unbifurcated, dorsal, abdominal, thoracic and temple fins are normal, strong physique, strong adaptability, easy to raise. In addition to red, there are red and white flowers, five-flowered glass flowers and colorful flowers. It is sensitive to the landing of bait and can swim in line with the beat of people. it is suitable for large area breeding in parks and natural waters, as well as in courtyards, tank ponds and aquariums.

two。 Dragon eye fish

Is the representative fish in the golden color, the eyes are large and prominent, the eye sockets are located on both sides of the head, symmetrical, the eyeballs are black and bright, the scales are round and large, the dorsal fins are elongated, the anal fins and caudal fins are paired and elongated, and the most common body colors are red, black and red and white spots. Representative varieties are: five-flower dragon eye, sky-facing eye, butterfly tail dragon eye, ink dragon eye and so on.

3. Amphipod

The body is short and round, the head is flat and narrow, the anal fin and caudal fin are paired and long, and the body colors are mostly red, red and black, red and white, purple and five-color mottled spots. Tall head and pearl are the two main species of salmon.

4. Egg fish

Is another major category of goldfish in China, the body is short and fat, the head is flat, with normal scales and eyes, egg fish without dorsal fins, caudal and anal fins are in pairs. The main varieties are: blisters, Gill turning, Tiger head, Red head, Wuhua Danfeng, Cashmere Ball and so on.

2. Feeding requirements of goldfish

1. Water quality: goldfish has a strong tolerance to changes in PH value, and can survive within the range of PH6.0~9.5, and the most suitable range is PH7.5~8.5. When the PH value is low, the activity of goldfish is slow, the appetite decreases, and when it is serious, it stops growing, even if the dissolved oxygen content is not low, it is easy to float. On the other hand, too high PH value will also kill the goldfish.

two。 Water temperature: Jinwu can survive in the water of 0: 38 ℃, but the water temperature will affect the metabolism of fish. In the suitable temperature range, the higher the water temperature, the stronger the metabolism and the faster the growth and development, but the adaptability of goldfish to water temperature is poor. If the water temperature suddenly increases or decreases by 7 ~ 8 ℃, goldfish is easy to get sick or even die. In particular, young fish are more sensitive to changes in water temperature.

3. Eating habits: goldfish is omnivorous fish, aquatic plants, plant seeds, wheat bran, bread crumbs, as well as zooplankton, fish and shrimp minced meat, animal offal, fish meal and so on can be eaten. Young fish rely on Gill rakes to filter rotifers, paramecium and other small zooplankton in the water. In order to make the goldfish healthy and lively and colorful, it is necessary to give an appropriate amount of nutritious food. Such as: fish and insects, water earthworms, synthetic bait and so on. They all contain nutrients such as proteins, carbohydrates and trace elements.

To sum up, do you know what kind of goldfish you raise in your home? The editor raised a lot of goldfish when he was a child, but because he didn't know the specific feeding requirements, the survival rate was not high. Now if you don't know much about it, you can come and learn.

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