Zebrafish is a very explosive fish. As long as the environment is suitable, they will multiply in large numbers and increase the breeding density, which will not only increase the oxygen consumption, but also accelerate the deterioration of water quality. Generally, feeding is not recommended. However, this kind of fish itself is very ornamental, and it is easy to raise, which is more suitable for novices, as long as the number of breeding is appropriately reduced.

Zebrafish, also known as blue striped fish, striped fish, blue zebra fish, Indian zebra fish and CYPRINIDAE, are native to South Asia and India and distributed in Myanmar, Bangladesh and Singapore.

Zebrafish is 4-6 cm long, with a spindle-shaped body and a slightly flat side. Zebrafish have stripes similar to zebras on their heads, hence the name zebra fish. Its back is olive and its side is covered with many blue stripes from beginning to end. The male fish is dark blue with lemon stripes, and the female fish is blue with silver gray stripes. Zebrafish's orbital iris is yellow and red.

Zebrafish have wide anal fins. Corresponding to dorsal fin, pectoral fin is smaller. There are about 10 species of zebrafish, mainly with different stripes and colors, and different fin rows. Such as long fin zebrafish, golden zebrafish, lightning zebrafish, big zebrafish, etc.

Feeding requirements of zebrafish

Zebrafish is gentle, lively and active, and swims almost all the time. There is no strict requirement on the quality of inlet water, and I like to live in pH neutral water and fresh water. The suitable water temperature is 265,438+0-26 degrees Celsius. However, zebrafish is both cold-resistant and heat-resistant, and can still survive at the water temperature of 15-40 degrees Celsius.

Zebrafish like to feed in the upper waters and are not picky about bait. All kinds of fish and insects are fed with artificial feed. It is best to spread some pebbles at the bottom of the tank to facilitate the accumulation of sediments and not to make the water turbid. It does not attack and kill other fish and is suitable for polyculture. Zebrafish is one of the most popular tropical fish because of its beautiful colors and extensive feeding conditions.

Male and female identification and reproduction of zebrafish

It is not difficult to distinguish between male and female zebrafish: the male zebrafish has a slender body, large fins, yellowish body color, brown buttocks and obvious stripes; The female fish is fatter, lighter in color, bluer and yellower in anal fin, and the abdomen of the fish is obviously swollen during pregnancy.

Zebrafish is an egg-laying fish, which enters sexual maturity at the age of 4 months. Generally, it is better to breed with 5-month-old fish.

Zebrafish are easier to breed. Aquaculture water requires pH6.5-7.5, hardness 6-8 and water temperature 25-26 degrees Celsius. Zebrafish like to eat their own eggs, so they spread small stones and aquatic plants in the culture tank to facilitate the attachment of eggs. When breeding, the female fish can be prevented from entering the breeding pool at the ratio of 1: 2. Generally, female fish can be prevented from entering the breeding pool the night before, and they can lay eggs and fertilize at noon the next day. A female fish can ovulate 300- 1000 eggs at a time. After 2-3 days, the fertilized egg can hatch into larvae, and then after 2 days, the larvae begin to swim for food. At first, it was fed with "backwater". After 10, other small fish and bugs can be fed. The breeding cycle of zebrafish is about 7 days, and it can breed continuously for 6-7 times a year, with high egg production.