Koi fry eat a lot of food. You can feed koi fry boiled egg yolks, crushed into pieces or some animal and plant feeds, etc. You need to pay attention to the right amount when raising them. To feed too much.

1. Plant-based feed: The ideal feed for koi is naturally animal-based feed. However, when animal feed is lacking due to various reasons, plant-based feed may become a rescue possibility. Assistive feed to protect life. Common ones include turnip and aquatic plants, among which turnip is one of the smallest species among seed plants. The plant body has no roots and is as small as sand, and its nutritional content is also better. The other is small duckweed, which has a filament-like root. Koi fish also eat it when they are hungry. Generally, they can only be fed to larger koi fish. However, there is no need to feed more. Be careful to check whether there are any pests before feeding. and insect eggs, or soak them in a low-concentration potassium permanganate solution for a short time before feeding, otherwise it is easy to introduce bacteria and insect pests.

2. Animal feed: Animal feed is one of the most nutritious feeds that koi carps like to eat.

① Fish Insects: Fish Insects are commonly known as red worms, water fleas, etc. They are zooplankton that grow in muddy ponds, ponds, and rivers. They are the common names for various water fleas.

② Daphnia: The body of Daphnia is blue-grey, and it belongs to the copepods among crustaceans. Its advantage is that it has strong vitality, swims fast, and can be kept for several days without dying. However, the disadvantage is that Due to its small size, if it is used to feed several-year-old fish, it will be more difficult to catch food due to its fast swimming. Moreover, the water fleas can also bite small fry. Therefore, when feeding the water fleas, it is best to use Kai. Boil the water.

③ Paramecium: Paramecium, commonly known as gray water, is the common name for several species of plankton. It can be cultivated with straw and is most suitable for feeding newly hatched fry.

④ Blood worms: They are called blood worms in the south and Youbeng in the Shuofang area. They are the larvae of chironomids with blood-red body color, so they are called blood worms. They are rich in nutrients and relatively expensive. It is easy to save and needs to be refrigerated. Generally, those who like it can freeze it and feed it.

⑤Water earthworms: There are many varieties of water earthworms. Water earthworms are the favorite food of koi. They are rich in protein, fat and vitamins. They generally live in the upper layer of sludge in fertile rivers or culverts with running water. One end is extended into the mud, and the other end is swayed with the water. It is generally small, soft, bright red or dark red, and is easily eaten by koi. However, it must be rinsed repeatedly before feeding, and if conditions permit, it must be kept for several days. , water earthworms spit out the mud and then feed it.

3. Synthetic feed: To develop large-scale koi breeding industry, catching natural bait fish and insects alone cannot meet the needs. In addition to artificially cultivating fish and insects, it is also necessary to develop synergistic pellets. The production and supply of feed to the market can, on the one hand, solve the feed sources of farms, and on the other hand, it can also meet the needs of koi enthusiasts who want to raise koi at home. With artificial feed, it is much more convenient for families to raise koi. The combined pellet feed requires complete nutritional ingredients to meet the needs of koi growth and development. The main ingredients should include protein, sugar, fat, inorganic salts, vitamins, etc. 5 Categories.

①Protein: proteinQuality is an important component of the koi body. Its function in the body is to develop new structures and repair old structures. It is also a component of heat energy supply. There must be enough protein in the bait to promote the rapid growth of koi.

② Sugar: Sugar is an important material for heat energy in the body of koi and an important feed ingredient for koi.

③ Fat: Fat is the food with the highest heat energy storage. Its physiological functions are similar to sugar, and it is oxidized in the body to provide energy. Generally speaking, if there is a lack of fat in the diet, koi will grow slowly and be small in size, which will reduce the fish's endurance to low temperatures and hypoxia, and will easily cause sacrifices during winter. If there is too much fat and the fish is too fat, it will block the gonads. development.

④Inorganic salts: Inorganic salts are important elements that constitute color bones, such as calcium phosphate and calcium carbonate. The blood and muscles of fish also contain a certain amount of calcium and phosphorus. The feed contains a certain amount of calcium, which can promote digestion and help the absorption of fat and phosphorus. In addition to obtaining calcium and phosphorus from the feed, koi can also absorb calcium and phosphorus from the water into the body through the skin and gills. Koi also needs trace elements such as iron, copper, magnesium, sodium, potassium, and diamond. If these elements are lacking, they will grow slowly and develop diseases. In order to ensure the normal growth of koi, these elements should be included in the feed.

⑤ Vitamins: Vitamins are also necessary for the growth of koi. Long-term lack of vitamins will cause the fish body to be underdeveloped, slow or completely stopped in growth, and even abnormality will occur, and the resistance to adverse external environments and various fish diseases will be reduced. Lack of vitamin A will cause cracks in fish fins, disappearance of fish body pigment, and body color becomes pale and dull. Lack of vitamin E will cause underdevelopment or no development of gonads. At the same time, the resistance to aquatic fungi will be limited. If the dog is short, adding a little vitamin B12 to the feed can promote growth.

When raising koi fry, you need to pay attention to water quality.

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