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Just press on its body.
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Jellyfish can be resurrected when they die.
Jellyfish are aquatic coelenterates. They live in the ocean and are invertebrates, but they are not mollusks, they are coelenterates. They belong to the family Aejellyfish of the order Aeolidae of the class Coelenterate, and have a much lower IQ than mollusks, but are somewhat more advanced than sponges.
Because they already have cells and muscles, and the nervous system in the body controls the activity of the muscles, and there are also unique stinging cells.
Kind
Cube jellyfish
The entire umbrella shape of this jellyfish is square, the edges of the umbrella are also quadrangular, they have limbic nerve rings, and they are connected to the tentacles. The representative varieties are the trolling jellyfish and the box jellyfish.
Crested jellyfish
The umbrella of this jellyfish is rounded, but the outer umbrella has a constricted groove that divides their umbrella into two parts. The representative species is the marginal leaf jellyfish.
Cross jellyfish
The shape of this jellyfish is formed by a combination of a polyp and a jellyfish type, and it looks like an inverted horn. Representative varieties include tall cup jellyfish and trumpet jellyfish.
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Jellyfish cannot be reborn after death.
Most of the jellyfish's body is water (almost 98%), and after death, other substances that make up the body will be decomposed by other organisms in the water or dissolved in the water, and if it is decomposed by microorganisms, there will be no filial piety, so it will look like water after death.
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When the jellyfish is dying, it will lie motionless at the bottom of the tank, and its antennae will secrete foreign objects that will gradually disappear and fall. At this time, it is best not to touch the jellyfish, otherwise it is easy to be poisoned, most of the jellyfish death is caused by changing the water or improper operation of the water, it is recommended to test the water temperature and salt content first, and then pour the new water into the breeding tank, which can avoid the death of the jellyfish.
Mizuki is usually very lazy before he dies, and he doesn't like to swim around, and usually lies quietly at the bottom of the tank. At this time, do not touch jellyfish to determine whether they are dead, otherwise it is easy to cause poisoning.
Secondly, after about a day or two, the tentacles of the jellyfish will secrete a net-like silk thread, which will gradually disappear and fall, indicating that the Iwataka jellyfish is already on the verge of death. It won't be long before the jellyfish shrinks in size and gradually turns into a puddle of water.
Jellyfish have extremely high requirements for water temperature and quality, and once the water is changed or used incorrectly, it may cause the death of jellyfish. Therefore, it is best not to remove the jellyfish when changing the water, and test the appropriate salinity and water temperature before pouring new water into the breeding tank.
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Jellyfish is a marine organism and a group of organisms of the phylum Coelenterate. They usually have a transparent body that can feel the flow and pressure of the water and move by contracting and expanding.
As to whether jellyfish can be resurrected, it is actually not accurate. Jellyfish go through different stages and forms during their life cycle, and some stages may take on the appearance of "resurrection". For example, when a jellyfish is at certain stages of their life cycle, such as the blastocyst stage, they may enter a state of pause during which they do not grow or perform any activity, but when environmental conditions are suitable, they resume growth and re-enter their normal life cycle.
Additionally, some jellyfish can repair themselves to restore damaged tissues or organs. For example, some jellyfish can regrow tentacles or stinging cells from damaged tissue.
However, these processes are not the same as full resurrection. Jellyfish cannot be fully resurrected from a state of death like some creatures. They can only restore damaged tissues or organs by repairing themselves and re-impersoning and growing, but this does not mean that they can be resurrected from the dead.
So, the problem, jellyfish can't be fully resurrected from a dead state like some kind of scarcity, but they can repair and regrow themselves to restore damaged tissues or organs.
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The breeding of jellyfish will also vary depending on the species, and in the cultivation of aquariums, there are the following points:
1 Water quality: First of all, the bubbles and water flow in the jellyfish terrarium are the most important issues that need long-term attention, and then the importance of aeration. There is a certain balance in the ecology of the ocean, which will not be discussed in detail here.
Nitrogen and carbon dioxide in the water are beneficial to the symbiotic algae unicellular zooxanthellae in the jellyfish, but methane and ammonia are harmful to these algae, and jellyfish are very sensitive to nitrite and do not like to change water often, so the water quality is very important in the process of raising jellyfish, and we can add nitrifying bacteria to the jellyfish aquarium in a small number of times to assist in the establishment of the water quality system. Air bubbles also have different effects on different jellyfish. Among them, the moon jellyfish is the most afraid of bubbles, and the whole body is transparent, and the bubbles accumulate in the jellyfish wings, which will cause holes in the jellyfish wings.
The other two are commonly found in Fish Street: pearl jellyfish with a full body of classes, colored jellyfish with too many full body baskets, and white, and the threat of bubbles is not so big. However, these jellyfish are also not suitable for growing in environments with strong currents, which can separate the wings from the mouth.
2 Water temperature: The most suitable feeding temperature for jellyfish is 25 degrees, the water cooler is an essential tool for raising jellyfish, the temperature is too high for the jellyfish activity will be reduced, and then sink to the bottom of the tank and die.
3 Change the water: The number of jellyfish, the size of the sink, etc., the amount of water to change is different, but change the water at least twice a month. Try not to hurt the jellyfish, do not suck the jellyfish when draining, avoid the generation of bubbles when giving water, and do not give water too quickly. Wait.
4 Co-culture with other organisms: Some aggressive fish and crustaceans will prey on the bait that has been attached to the jellyfish, or directly attack the jellyfish, try to choose mild species. As for the soft body, although they have little mobility, their poisonous tentacles are masters of catching jellyfish, and jellyfish may eat at night.
5 Jellyfish feed: Jellyfish feed on plankton in the water, but in aquariums, this water full of plankton and organic matter cannot be provided. Therefore, the bait is mainly harvested shrimp.
It is also necessary to supplement the liquid feed of jellyfish, seawater trace elements, and seawater rotifer feed specially designed for softness. Jellyfish have a simple digestion structure and can also be fed with this easily decomposing feed. When you find that the digesters and mouth in the jellyfish wings turn orange, it means that the jellyfish has eaten enough.
Please do not eat too often and in large quantities. The water quality is prone to deterioration.
5 Light: There are symbiotic algae in the jellyfish unicellular zooxanthellae, these algae supply the nutrients produced by photosynthesis to the jellyfish, and the nitrogenous waste produced by the metabolism of the jellyfish is provided to the single-celled zooxanthellae in the body, and the relationship between the two depends on each other, so the light in the jellyfish aquarium is important, and the appropriate coral basket light of the jellyfish aquarium can provide the unicellular zooxanthellae for photosynthesis, mainly the coral lamp, and the light time does not need to be specially strengthened.
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Captive-farmed jellyfish can create a nitrification system in the water like fish farming, but this needs to be done gradually. Don't change the water too often when you're breeding jellyfish. Water temperature:
For jellyfish, the best water temperature is around 25 degrees, not too high, otherwise the jellyfish will not be able to adapt. Food: The two most common foods are small fish and shrimp, which can also be fed jellyfish with specialized liquid feed.
Light: Light is provided at the right time, light is very important for their life activities, a special substance in jellyfish is called unicellular xanthellae, which uses light for photosynthesis. Can jellyfish be raised; Jellyfish are invertebrates and are relatively inferior invertebrates.
They live in the sea but can also be bred in captivity. The conditions of domestication are still different from the environment of their native area, so there are some issues that need to be paid attention to during the breeding process in order to allow them to live longer. Precautions for raising jellyfish; Jellyfish breeding should pay attention to water temperature and body shape.
Because this animal originally lived in the sea, it had to be raised with artificially created seawater, which was not feasible. To maintain a constant temperature, it is best to control it at about 25 degrees Celsius. Also be careful with rearing, you can prepare some plankton shrimp etc.
It also provides a certain amount of illumination, which is another way for it to replenish energy.
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The appearance of filamentous mucus is a reflection of environmental discomfort; I think there should be a problem with salinity, and the salinity adapted to the young sting is 14-30 (Gu Li et al., the effect of salinity and dissolved oxygen on the growth of young jellyfish stings. Journal of Dalian Fisheries University, 20:41-44, a bottle of mineral water 500ml is calculated according to 500g, the salt needed (preferably coarse salt) is 7-15g, a bottle of salt does not know how much it weighs, you can weigh it yourself; And jellyfish need live bait, such as the abundant worm (Artemiaspp.).Biscuit residues only spoil the water quality.
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Jellyfish that do not move is dead. Jellyfish slowly turn into water after they die, because 90% of the jellyfish's body is water.
You can find something clean and move it to see if it can still move. In order to avoid such a situation, when feeding, it is necessary to ensure that the temperature is 25, if the temperature is too high, it will reduce its activity, and it will sink and die. If the water quality deteriorates, the water should be changed in time, and care should be taken not to harm the jellyfish when changing the water.
Precautions for farming jellyfish:
1.Water Quality Requirements:
Jellyfish are marine creatures, so they should be raised in seawater. Generally, when breeding, it is necessary to change the water, and the water can be changed by 1 3 in two weeks, so as to avoid the pollutants in the water blocking the jellyfish's ability to receive, and it will also affect its swimming speed.
2.Preparation for breeding:
You can buy an aquarium for breeding jellyfish, put in a thermostat, and adjust the temperature to about 25 degrees.
3.Food Preparation:
Insects and shrimp can be fed to jellyfish, and plankton is their best food. If you see your mouth change color during feeding, it means that you have eaten enough. Based on this information, the number of feedings can be determined to avoid overfeeding and polluting the water quality.
4.Light Source Management:
Jellyfish generally need a light source, there are single cells in the body of jellyfish, and they need to carry out photosynthesis, so that oxygen can be transmitted to the jellyfish, and the waste produced by the jellyfish is also the food of the single cell, so they are dependent.
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