A, anchovy culture method
1, water temperature: Anchovies are tropical fish and like higher water temperature. When artificially raised, the water temperature can be controlled between 24 and 26℃. If possible, a heating rod can be used to keep the water temperature constant.
2. Water quality: anchovies can grow better in weak alkaline water, and farmers can keep the PH value between 7.2 and 7.4. They like clean and refreshing water. It is best for breeders to change water once every three days, and the amount of water changed each time should be controlled at one third of the total water. When changing water, pay attention to the temperature difference between new water and old water can not exceed 2℃.
3, feeding: anchovies are not picky eaters, and breeders are best fed with a variety of foods. Animal feed suitable for anchovies includes shrimp, red worm, Tenebrio molitor, Daphnia, water lice, earthworm and so on. Plant feeds suitable for anchovies include algae, aquatic plants, mosses, turnips, vegetables and fruits. Breeders can also choose some synthetic feed to feed. Synthetic feed is not easy to pollute water quality, and can also ensure balanced nutrition.
4. Space: The fins of anchovies are relatively long, so it is necessary to ensure that there is enough space for them to move when they are cultured artificially, so that they can grow better.
Second, the precautions for raising anchovies
1, environmental stability: anchovies are sensitive to environmental changes, although they do not have high requirements for a good environment. When raising artificially, it is necessary to keep the water temperature and water quality stable, so as to grow better.
2. Regular disinfection: Anchovies are weak in disease resistance, so breeders need regular physical examination and regular disinfection to avoid their illness.
Life habits of anchovies
1. Omnivorous: Anchovies are omnivorous fish. Under natural conditions, they mainly feed on zooplankton, aquatic insects, larvae and higher plant debris, and can be fed with granular feed, red worms, water fleas and breadworms.
2. Thermophilic fish: Anchovies are thermophilic fish. The critical survival water temperature is 10 ~ 36℃, and the optimum survival water temperature is 22 ~ 26℃. When the water temperature is lower than 16℃ or higher than 32℃, they gradually stop eating, and when the water temperature is lower than 10℃ or 36℃, they will soon die.
3, viviparous: anchovies are viviparous fish. After mating, females can store sperm for fertilization, and they can give birth every 4-6 weeks, and each time they can give birth to 20-40 young fish, but the parent fish will not take care of the young fish, and even eat their own young fish.