The zebrafish is an oviparous fish that enters sexual maturity at the age of 4 months, and it is generally better to choose to use 5-month-old fish as the parents, plus the fish should be strong enough to reproduce. The breeding cycle of the zebrafish is about 7 days, and it can reproduce 6-7 times a year in a row with a high spawning rate.

The zebrafish is very fertile, and a pair of zebrafish can give birth to 300 babies at a time. In addition, one day of zebrafish embryo development is equivalent to 21 days of human embryo development in the mother. Two to three pairs of zebrafish parents are selected and placed in a breeding aquarium, preferring to spawn at the bottom of the aquarium, and the spawning process ends between dawn and around 10:00 a.m. the next day.

When the breeding water temperature is 24℃, the fertilized eggs will hatch out after 2~3 days; when the water temperature is 28℃, the fertilized eggs will hatch out after 36 hours. Water temperature 25 ℃, 7 ~ 8 days of young fish open food, this time feeding egg yolk gray water, and later feeding small fish worms.

Expanded Information:

Life Habits

Swimming fast, preferring clear and mild water. Water quality, the longest life expectancy is 2-3 years, during which time it also accompanies growth, probably up to about 6 centimeters.

The zebrafish has a mild temperament, lively and active, suitable for mixed culture. The water quality requirements are not harsh, preferring to live in pH-neutral water, like new water, suitable for water temperature 22 ℃ ~ 30 ℃, the limit of low temperature is 10 ℃.

The zebrafish is considered one of the fish with the widest temperature range among the tropical fish, and it can survive in water temperature between 15 ℃ and 40 ℃. Zebrafish like to feed in the upper waters, not picky about the bait, a variety of fish insects and artificial bait can be fed. Zebrafish has beautiful colors and low requirements for feeding conditions, so it is one of the most popular tropical fish.