Reproduction and breeding of goldfish

Morphological characteristics of goldfish

Goldfish, also known as Baiyunshan fish, Tang fish, red-tailed fish, color goldfish, Cyprinidae is native to Guangdong, China.

The goldfish was first found in Baiyun Mountain in the northern suburb of Guangzhou City, Guangdong Province, China, so it is called Baiyun Mountain Fish.

The goldfish is about 3-4 cm long and has a spindle-shaped body, slender body, slightly flattened side, small head, large eyes and blunt round kiss. The back of the fish is tea-brown, slightly bluish, the abdomen is silvery white, the dorsal and caudal fins are bright red, the ventral fin tip is yellow, and the middle of the tail is also red. There is a golden band along the side line from the end of the snout to the end of the tail stalk, and there is also a golden spot, so it is named goldfish.

The goldfish is petite and colorful, especially when it is young. It is known as "Sai Honglian Lantern" in foreign countries.

Feeding requirements of goldfish

Goldfish have mild temperament, miscellaneous eating habits and are easy to raise. It is very suitable for beginners. It has no strict requirements for feed water, generally weak acid or neutral soft water is better, the suitable temperature is 20-25 degrees Celsius, but it can withstand low temperature and can survive in water of 5 degrees Celsius.

Although goldfish have miscellaneous feeding habits, they prefer to eat animal bait. More aquatic plants should be planted in the feeding tank to maintain proper light. Goldfish are suitable for mixed culture with other tropical fish.

Male and female identification and reproduction of goldfish

The male and female of the goldfish can generally be distinguished by the following characteristics: the male is smaller than the female, but the dorsal and anal fins are larger than the female, and the body color is darker and brighter than the female; the female is larger than the male, and the belly is enlarged and slightly whitish.

PH6.5-7.5, hardness 6-8, water temperature 24 degrees Celsius is appropriate, the bottom of the cylinder covered with gravel or pebbles, a variety of foxtail algae, golden grass and other water plants. Goldfish like to lay eggs in sunlight, so the breeding tank should be placed in a place where the sun can shine.

When breeding, you can choose to breed fish in pairs into the tank, or you can use group reproduction. Each female goldfish can lay 150-300 eggs at a time. After spawning and fertilization, the fish should be fished out immediately to avoid swallowing the eggs.

The fertilized eggs hatch after 1-2 days, and after about 3 days, the larvae begin to swim for food. At the beginning, it should be fed with "migratory water", and it will take about 10 days to feed other small fish and insects.