CATDOLL : CATDOLL: Can grass carp, silver carp and bighead carp eat feed and freshwater crayfish?

1. Can grass carp, silver carp and bighead carp eat feed and freshwater crayfish?

Freshwater crayfish can be mixed with silver carp and bighead carp, because the pond for raising freshwater crayfish needs to be planted with aquatic plants. The area of ​​aquatic plants such as Hydrilla verticillata, Potamogeton oleracea, and Elodea nutans should be planted in the pond, and the area should account for 2/3 of the shrimp pond area. When the same skin tribe is used, set up nets, or set up bamboo tubes and plastic tubes to provide a habitat, molting, and hiding place for the crayfish. Grass carp will eat these aquatic plants. So it cannot be mixed with grass carp. Silver carp and bighead carp can eat granular feed.

You can refer to the following information:

It is possible to eat summer slices and spring flowers of grass carp.

Grass carp is a herbivorous fish and does not eat other organisms. Silver carp and bighead carp are both surface pelagic fish, mainly feeding on plankton, and have no effect on crayfish.

Grass carp can be fed with special grass carp feed, while silver carp and bighead carp are mainly fed by increasing the nitrogen content of the water to cultivate plankton.

Additional reply to Lao Zubi: OK.

2. Silver carp feeds on plankton throughout its entire life. Does it mainly eat zooplankton during the fry stage?

In the hot summer, silver carp has the strongest appetite.

Silver carp likes fertile water and often gathers together.

They swim in groups to the middle and upper layers of the water, especially in areas with richer water quality. They are timid and afraid of being disturbed. They have a very poor tolerance to low oxygen and will immediately die if there is a lack of oxygen in the water.

Some of them floated to the surface and died soon.

Catfish is a pelagic fish. In spring, summer and autumn, it spends most of its time swimming in the pelagic layer of the water to look for food, and in winter it dives deep into the water to hibernate. It is a typical filter-feeding fish. It relies on the special structure of its gills to filter zooplankton in the water. Main food: Catfish feed on zooplankton throughout their lives. In the hatching stage, they mainly eat plankton, and when they are about 1.5 cm long, they gradually turn to eating phytoplankton. They also like to feed on grass carp feces and chicken and sheep manure. They also eat soy milk, soy milk residue powder, wheat bran and rice bran.

They prefer to eat human micro-granular concentrated feed. They are very interested in sour food and have a strong appetite for rotten food. Catfish love to eat rotten food and are often fed with carp. Silver carp eats grass carp feces, so there is a saying that one grass can feed three silver carps. Catfish's food has obvious seasonality. In spring and autumn, in addition to zooplankton, they also eat a lot of rotten bait; in summer, the lower the water level, the more they eat; in winter, they eat less and move less. It is suitable for breeding in fertile water.

carp

Carp is relatively common in the market, and most people weigh around 5 jin. It can be used for boiled fish or spicy fish. A carp weighing around 5 jin is neither big nor small, just enough for a family to eat. But do you know that the carp we use is just underage grass carp fry!

Carp is a species of carp in the genus Carp, also known as oil carp, grass carp, carp, white carp, grass root, etc. It is a large fish species, which can be more than 1.5 meters long and weigh more than 50 kilograms. It is widely distributed in China, and natural species are distributed in all regions except Xinjiang and Tibet. The history of grass carp farming in my country has been 1,700 years, and it was not until 1958 that it was truly completed in full artificial farming.

It is a typical herbivorous fish species, living in the coastal waters of rivers, lakes and seas in plain areas. It likes to gather in groups. The main food of juvenile fish is larvae and algae. Adult fish also like to eat some meat dishes, such as loaches and dragonflies. It spends the winter in the deep water of the mainstream or lake. During the reproductive season, the parents have the habit of upstream swimming and have a long lifespan.

catfish

Catfish belongs to the Cypriniformes, Cyprinidae, also known as silver carp, water carp, jumping silver carp, silver carp, etc. It is one of the key freshwater fish species in my country and is distributed in major water bodies across the country. Under the premise of suitable temperature, most of the time it swims in the middle and upper layers of the water to find food, and it often moves in large groups due to its gregarious nature.

Catfish feed on plankton throughout their lives. They mainly eat plankton in the fry stage, and gradually turn to phytoplankton when they reach more than 1.5 cm. They mainly feed on phytoplankton after adulthood, which is the biggest difference between them and silver carp. The water temperature suitable for catfish growth is 23-32°. In summer, their appetite is the most abundant. After late autumn, due to the drop in water temperature, they will seek deep water and spend the winter in deep water, and their food intake will be greatly reduced.

The fry stage does need to eat plankton, and having more of these plankton can help the fry grow quickly.

It feeds on plankton throughout its life. During the nutritional stage, it mainly eats zooplankton. When it grows to more than 1.5 cm, it gradually turns to eating phytoplankton and likes to eat the feces of other animals.

When it is still in the fry stage, it mainly eats zooplankton. When they grow up, they mainly feed on phytoplankton until they become adults.

3. Can ordinary fish food be fed to silver arowana?

OP, it should be fine...

Of course it would be best to have fresh small fish, but if not, chicken breast or beef can also be fed.

If there is no such thing, you can feed dry food, such as dried shrimps and dried small fish.

Dry food refers to the feed sold specifically at fish farming outlets.

The small shrimps bought from the market cannot be fed because they have not been processed.

It is easy for the silver dragon to pierce the digestive organs after eating, causing the fish to die.

4. Do silver carp, grass carp and carp eat earthworms?

They like to eat earthworms very much, and many people use earthworms as bait when fishing.