Regarding the question of Daphnia, what are the dangers of Daphnia?

I buy daphnia. Before, I put some soil and some water in the container where I was going to breed Daphnia and let it dry in the sun for a week, so that algae plants would grow automatically, and when I got the Daphnia, I put them in the container that I had prepared, and then I put them in the sun and let them grow and reproduce without any auxiliary equipment, and I wouldn't give him light at night. Later, my domestic guppies.

After giving birth to small fish, I directly put the small fish into a container with daphnia and let it feed and grow freely The daphnia have been raised for more than 1 month now, and the size of the fish has basically eaten all the daphnia in the container in which they live in less than 1 month, and I have not fed them much (small fish and daphnia), only fed the daphnia once or twice baking powder and fed rice washing water today, and the daphnia in the tank that only raises daphnia are still alive and well, and they have also bred a lot As for the density requirements, I don't know much, because I will put some daphnia for the fish to eat for a long time, and there has been no explosion of the tank.

However, the weather is getting hotter and hotter, and it should be no longer suitable for a long time to be put in the sun, because it rained for a few days ago, and today I put the water flea in the sun for a few hours (the sun before noon), and found that there are a lot of water fleas missing, and the water has become a little warm, I think it may be too hot, resulting in the death of some water fleas.

This is my recent practical experience in raising Daphnia, I hope it can help you

Take the bucket of water, the water surface of the bucket should be large, the depth of the water should be 30-50 cm, put it in the sun for a few days, when the green algae grow, just put the daphnia seed, I hope it can help you.

It can be cultivated in rice washing water, the temperature should not be too high, and it should be placed in a cool place.

Feeding fish with fleas is basically harmless to fish.

Daphnia have a certain economic value because they can be used as food for fish. Daphnia is a good animal feed, which is very rich in protein, and can even reach 40%-60% of their own body weight;In addition, they are also relatively high in fat, which can promote the growth of fish.

Daphnia inhibits the greenhouse effect:In the North Pacific Ocean, there is a zooplankton belonging to the group of neocalanus that carries large amounts of carbon to the bottom of the ocean, and even sequesters large amounts of carbon on the ocean floor for hundreds of years.

This zooplankton belongs to the group of coarse Daphnia and is about five to ten millimeters long. When the dormant Daphnia is eaten by fish and other marine organisms, the carbon dioxide is sent to the deep sea, and depending on the movement of the seawater, it may take hundreds of years for the carbon to return to the shallow sea.

Daphnia are not harmful.

Daphnia is an excellent bait for freshwater-fed fish such as yellow eels. The cultivation is relatively simple, and a small amount of breeding can be used in bottles, cans, tanks, etc.; A large number of breeding can be used in earthen ponds and cement ponds. Daphnia contains a large amount of protein, up to 40%-60% of its dry weight.

Protein contains all the amino acids that fish need to grow.

Daphnia habits:

Daphnia have a comb-like crown with green spikes on the head, and the sight of them causes predators to lose their appetite. The spiked corona, which is about 200 microns in diameter, appears in the descendants of Daphnia that can sense the chemical signals released by horseshoe crabs.

Exposing some of the exoskeleton Daphnia to the laser light of the microscope produces such a glorious scene. The fact that lower organisms are exhibited shows that algae with simple structures are also attractive. The cells look like amoebae as they pass through the tiny fertilization ducts.

In spring to early summer, they swim on the surface of the ocean and devour phytoplankton that absorb carbon dioxide through photosynthesis. In summer, the coarse Daphnia swims to a depth of 500 to 1,500 meters to lay eggs and ends its life after laying eggs in early spring.

The above content reference: Encyclopedia - Daphnia.

Daphnia body and Daphnia are two different concepts.

Daphnia carcasses refer to a tiny plankton that belongs to the crustacean family and has a flattened body that is usually only a few millimeters long. They live in freshwater and are more common in still or slow-flowing waters such as ponds, lakes, etc. They feed on a variety of plankton and are also one of the important food sources for many fish and other large aquatic animals.

The term "daphnia" can be used to refer to all insects belonging to the subclass Phyllopoda, a subclass of branchiopoda. These insects are characterized by distinct segmentation, banded dorsal carapaces and lateral plates, and well-developed compound eyes, including the so-called "daphnia body" such as the tiny plankton mentioned above, as well as other larger, more representative species such as Daphnia and Ceriodaphnia.

Therefore, the word "daphnia" may have different meanings in different contexts, so please judge the exact meaning of the word "daphnia" according to the context.

Daphnia is a small crustacean, also known as a fish insect, which belongs to a group of arthropods in the order Cladus of the phylum Arthropods. Daphnia is very small, only 1-3 mm long, light flesh red, relatively flat, with shell flaps on the outside of the body, and the head is located outside the shell; The compound eye is large, distinct, and can be constantly rotated; There are thoracic limbs that can be used for breathing and movement. Lives in freshwater and feeds on small plankton.

In spring and summer, only females can be seen, and the eggs laid are called "summer eggs", which are smaller, with thin egg shells and less yolk, and can directly develop into adult worms without fertilization.

Most of these adults are females and then undergo parthenogenesis. Therefore, it can reproduce in large numbers in a short period of time and is a piece of red, so it is called bloodworm.

In autumn, some small males hatch from summer eggs, and begin to reproduce hermaphrodites, and the eggs laid are called "winter eggs", which are larger than summer eggs, with thicker egg shells and more yolk. Fertilized winter eggs, also known as "dormant eggs", survive severe cold or dry conditions and develop into new females in the following spring when temperatures are warmer.

Daphnia is a small crustacean that belongs to the phylum Arthropods, Crustacea, and Clamopera. Called fish insects. Daphnia is small, about 2 mm long, light flesh red, and lives in fresh water.

The body is divided into a head and a torso, with dorsal armor, and the torso has 5 pairs of trunk limbs, which are motor and respiratory organs. Not only is it high in protein, but it also contains amino acids, vitamins and calcium that fish need. Daphnia is a high-quality bait for freshwater fish such as yellow eels.

Daphnia is a small crustacean that belongs to the phylum Arthropods, Crustacea, and Clamopera. Called fish insects. Daphnia is small, about 2 mm long, light flesh red, and lives in fresh water.

The body is divided into a head and a torso, with dorsal armor, and the torso has 5 pairs of trunk limbs, which are motor and respiratory organs. Not only is it high in protein, but it also contains amino acids, vitamins and calcium that fish need. Daphnia is a high-quality bait for freshwater fish such as yellow eels.

Daphnia belongs to the phylum Arthropods, Crustaceans, and Gill Legs. Commonly known as "goldfish worm" or "bloodworm", it is rich in nutrients, easy to digest, and is a palatable bait for fish fry and fish species. The body is small, about 2 mm long, light flesh red, and lives in freshwater hunger.

The body is divided into a head and a trunk with dorsal armor, and the trunk has 5 pairs of trunk limbs (thoracic limbs), which are motor and respiratory organs.

<> summer, some ponds or ditches that are flooded with green water can easily be overrun by Daphnia as long as there are no fish in them. In eutrophicated and slow-flowing waters, daphnia multiply and from afar, you can see patches of red flocculent floating on the surface of the water, which are fished for with nets to feed goldfish.

If you go to the water's edge and take a closer look, you will see that there are some small red dots swimming, and they are Daphnia one by one.

Daphnia uses the bristles on its antennae to move the water upwards and forwards, and when the antennae are raised, its body sinks, as if jumping in the water. <>

Daphnia itself is not poisonous, and if it is poisonous, it is also humans who polluted the water first, and they ingested toxic substances from the environment.