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Why die fish in an aquarium?

It is very unpleasant when the fish begin to die in the aquarium. It would seem that everything was done correctly: clean water was poured, aquarium equipment was working, the fish received timely feed. Despite this, the animals die. Unfortunately, this situation occurs in newcomers of the aquarium business quite often, which is why it is necessary to arm yourself with knowledge of the causes of this phenomenon. Each novice aquarist should understand the following in advance: if conditions are created in the water house for its inhabitants that are as close as possible to their natural habitat, then they will not get sick, much less die.

At the very least, the risk of death will be minimized.

Practice shows that in the overwhelming majority of cases, the death of fish is caused not by any external diseases, but by errors in content, illiteracy and carelessness of their owners. There are various reasons for this unfortunate phenomenon or a whole combination of causes and factors that should be considered in detail.

Poor quality aquarium water

This does not mean that the water is very dirty or muddy. No, it can be relatively pure, but poisoned by toxic chemical compounds, which are formed as a result of the vital activity of fish.

Harmful Chemistry

We are talking about nitrogen compounds, which include ammonia, ammonium, and other nitrates. These toxins will inevitably be present in the aquarium, as the fish every day leaves a lot of waste, which is constantly decomposed.

Thus, the visual purity of water is often accompanied by the appearance of an unpleasant smell of rot, which indicates a high concentration of toxic nitrogen compounds.

This smell is especially clearly felt if the aquarium is overcrowded and the system of biological water purification does not cope with the processing of toxins. As a result, the fish begins to gradually get poisoned and subsequently dies.

This state of aquarium water is formed in the following cases:

  • in the new aquarium has not yet reached the ecological balance;
  • beneficial bacteria that process toxic nitrites into neutral nitrates are not yet at full capacity;
  • new fish have been added to a working balanced aqua system;
  • overpopulation of the aquarium;
  • biofilter failure;
  • improper maintenance and cleaning of the biofilter, resulting in the destruction of the colony of beneficial microorganisms.

On this basis, certain measures are taken to prevent water poisoning. It can be either a substitution of part of its volume, or the installation of a new biofilter, or the relocation of extra fish.

Water parameters and the launch of the fish in the aquarium

The poor quality of the aquatic environment is also a violation of the pH balance and the discrepancy between the water hardness and the usual conditions for the existence of aquarium pets.

There are frequent cases when a person brings a fish just bought at a pet store and immediately releases it from the package to his aquarium, without thinking that the pet may experience a natural shock from the discrepancy between the environmental conditions. And as a result - death in the next day.

Therefore, it is necessary not only to know the exact conditions of one or another species, but also to clarify with the seller the parameters of the water in the pet store. And if necessary, organize a procedure for adapting a new fish.

Water temperature

The death of fish can also occur due to a decrease or increase in temperature of the aquatic environment. The opinion that a deviation from a certain temperature mode by 2-3 degrees in one direction or another will not affect the health of aquarium pets is deeply mistaken. If the temperature drops, there is a danger of dying from a cold, and as it rises, the fish may die from lack of oxygen.

Lack of oxygen as a negative factor

A fish is known to breathe air dissolved in water, and it can suffocate if it is too little in aqua. Although such cases are very rare, they do happen.

As a rule, even beginners pre-acquire all the equipment necessary for the operation of the home aquatic system.

And very often, buying a powerful enough filter, they trust him not only with water purification, but also with its aeration and mixing.

Still, experts recommend to separate these two functions and ensure the continuous operation of the air compressor.

Aquarium neighbors aggression

Even if a large fish is considered a herbivore, it can easily eat small animals that fit into its mouth. For many inhabitants of the domestic water reservoir, the degree of aggression repeatedly increases during the spawning period.

There are aggressive fish because of their natural features, whose bites and bumps are very painful. All of these factors can also cause the death of aquarium pets.

When buying a fish you should not rely entirely on the opinions of sellers. As a rule, for them the most important is the fact of sale.

It is better to spend time and learn more about the compatibility of certain species even before going to the pet store. Thematic information on this subject on the Internet is quite enough.

Feed quality and overfeeding

Many novice aquarists sincerely believe that giving fish a pinch of dry commercial food every day is enough. Far from it.

Continuous feeding of the same dry food can cause the death of animals from inflammation of the stomach or intestines.

Suffice it to imagine what will happen to the human body, if it is constantly, day by day, eat the same dry food!

The diet of the vast majority of fish should be diverse, include both protein and vegetable products.

Overfeeding - a very common cause of illness and death of animals. There are two significant points here. By itself, overfeeding can lead to diseases of internal organs. In addition, food debris, settling on the ground and gradually decomposing, contributes to a sharp concentration of nitrogen compounds, a large dose of which is fatal to the underwater inhabitants of the aquarium.

Illness is the most common cause

This is true, but in this case it is necessary to distinguish two main factors.

First of allThe disease can occur as a result of all the reasons listed above. Any of them, if they do not kill the fish immediately, will contribute to a sharp decrease in immunity. It is on this basis that a disease can develop that can lead to death. If this happens, then pets should be treated by contacting specialists.

Secondly, the death of fish can be caused by the development of infectious diseases. This is the worst scenario that could be in the process of maintaining the aquarium. Why do infectious diseases appear? As a rule, there are two main reasons: the launch into the aquarium of already infected fish or the appearance of parasites in the water house. Fungal diseases, peptic ulcer disease, lepidorthosis, tuberculosis and many other infections can cause not only the death of an individual, but also the pestilence.

It is necessary to daily monitor the behavior of aquarium pets, carefully examine them, and in case of the slightest suspicion, move the diseased individual into quarantine and consult a specialist.

Unfortunately, at least once the fish die in almost every aquarist. And the reasons may be completely different. It is important to carefully analyze the incident, identifying a specific cause, and try to prevent its recurrence. And if there is not enough knowledge and experience, there is the Internet and advice from experienced owners of ornamental fish.

Why die fish in an aquarium and what to do.

It is very unpleasant when the fish begin to die in the aquarium. It would seem that everything was done correctly: clean water was poured, aquarium equipment was working, the fish received timely feed. Despite this, the animals die. Unfortunately, this situation occurs in newcomers of the aquarium business quite often, which is why it is necessary to arm yourself with knowledge of the causes of this phenomenon.

Each novice aquarist should understand the following in advance: if conditions are created in the water house for its inhabitants that are as close as possible to their natural habitat, then they will not get sick, much less die.

At the very least, the risk of death will be minimized.

Practice shows that in the overwhelming majority of cases, the death of fish is caused not by any external diseases, but by errors in content, illiteracy and carelessness of their owners. There are various reasons for this unfortunate phenomenon or a whole combination of causes and factors that should be considered in detail.

Nitrogen poisoning

Nitrogen poisoning is the most common problem. It often concerns beginners who have no experience in dealing with aquarium animals. The fact is that they are trying to feed their pets to the dump, forgetting that with this increases the amount of waste. By the simplest calculations, each fish per day leaves feces equal to 1/3 of its weight. However, not everyone knows that in the process of oxidation and decomposition nitrogen compounds appear, consisting of:

  • Ammonium;
  • Nitrate;
  • Nitrite.

All these substances are united by their toxicity. The most dangerous of them is ammonium, the excess of which will be the main cause of death for all inhabitants of the reservoir. This happens most often in newly launched aquariums. The first week after the start becomes critical. There are two options for increasing the amount of these substances in aqua:

  • Increase in the number of inhabitants;
  • Breakage of the filter;
  • Excessive feed.

It is possible to determine the surplus by the state of water, more precisely by smell and color. If you noted the darkening of the water and the smell of rot, then the process of increasing ammonium in the water is started. It happens that when visually inspected, the water is crystal clear in the house for fish, but the smell makes you wonder.

To confirm your suspicions, ask special chemical tests at pet stores. With their help, you can easily measure the level of ammonium. True, it is worth noting the high cost of tests, but for a novice aquarist they are very necessary if you do not want to lose all your pets for a couple of days. If time corrects the situation, then the death will be avoided.

How to lower the level of ammonia:

  • Daily water change ¼
  • Water should stand at least a day;
  • Check the filter and filter element for serviceability.

Water temperature

The death of fish can also occur due to a decrease or increase in temperature of the aquatic environment. The opinion that a deviation from a certain temperature mode by 2-3 degrees in one direction or another will not affect the health of aquarium pets is deeply mistaken.

If the temperature drops, there is a danger of dying from a cold, and as it rises, the fish may die from lack of oxygen.

Lack of oxygen as a negative factor

A fish is known to breathe air dissolved in water, and it can suffocate if it is too little in aqua. Although such cases are very rare, they do happen.

As a rule, even beginners pre-acquire all the equipment necessary for the operation of the home aquatic system.

And very often, buying a powerful enough filter, they trust him not only with water purification, but also with its aeration and mixing.

Still, experts recommend to separate these two functions and ensure the continuous operation of the air compressor

Fish diseases

No one wants to blame himself, so beginner breeders blame the disease. Unscrupulous sellers only reinforce their doubts, because they have a goal to sell expensive medicine and cash in on. However, do not rush for a panacea, carefully examine all possible causes of death.

Blame the disease is possible only if the symptoms have been noted for a long time. The fish died away gradually, and not just died in an instant, for no apparent reason. Most often, the disease is brought to the aquarium with new residents or plants. Death may occur due to malfunction of the heating element in cold weather.

Going to pet stores, you should be aware of what exactly you need medicine. Each of the drugs directed to a specific disease. Universal drugs do not exist! If possible, consult an experienced aquarist or ask a question on the forum, knowledgeable people will tell you what to do in this situation.

Of course, the disease can not kill a healthy fish. Why do fish die in an aquarium? If the death occurred, then the immunity has already been undermined. Most likely, the first two errors occurred. Do not rush to launch new residents, no matter how beautiful they are.

What to do to protect the aquarium:

  • Organize quarantine for new inhabitants;
  • Sanitize fish or plants.

What to do if the disease started up in the aquarium:

  • Change one tenth of the water daily;
  • Increase the temperature;
  • Strengthen aeration;
  • Remove the carriers of the disease and those who are clearly infected.

Remember which fish you ran at home last. Individuals brought from other countries can be carriers of rare diseases, and it is sometimes impossible to detect and classify on their own.

O2 deficiency

This option is the rarest of all. Oxygenation of a fish house is always adequately assessed even by beginners. The first thing they do is buy a compressor. With him, not terrible choking fish.

The only possible option is to increase the temperature and, as a result, lower oxygen in the water. This can happen at night, when the plants are rearranged from the production of oxygen, to its absorption. To avoid this, do not turn off the compressor at night.

Aggressive neighbors

Before you go to the store for pets, think over to the smallest detail, can there be several species in one fish house? You should not rely on the competence of the seller, since the main goal for him is to realize as much of the goods as possible.

A few fundamental rules:

  • Big fish always tend to eat small ones (even in the case of herbivorous species);
  • Many succumb to intraspecific aggression;
  • Some are able to stick to small neighbors, which ultimately leads to death;
  • The strong always eat the weak;
  • Buy only those fish whose peace-loving nature you are sure of.

Unfortunately, it is impossible to establish why fish die. The death of a pet can happen even to experienced breeders. Be attentive to the fish, and you will definitely notice a change in behavior and in time eliminate the cause of anxiety. More often, fish die in an aquarium because of an oversight, and not according to other criteria.

What to do if you find a dead fish in the walls of the aquarium?

  1. Look at the number of fish in the tank. Recount them in the morning and in the hours of feeding. What is their condition, do they take food well? Are there fish that refuse food? Is it possible bloating in one of the fish? If you have not found any fish, check all the corners in the aquarium by lifting the lid. Inspect the plants, caverns and all the scenery. If after a few days the dead fish did not float to the surface, it may have suffered from a neighbor in the aquarium, and you can hardly find it. Sometimes the fish fall into an unprotected filter, and die there. In any case, keep searching until you find the visible reasons for the disappearance.
  1. Fish that have died in an aquarium should be removed from it. Tropical species of fish quickly rot because of high water temperature. Under conditions of such an environment, bacteria multiply rapidly, water grows turbid, and an unpleasant odor appears, which can cause infection of other pets.
  2. It is necessary to do an inspection of a dead fish. You must understand why she died in an aquarium. Wear medical gloves. If the body is not completely decomposed, look at the condition of the fins, scales, and condition of the abdominal cavity. Perhaps there are wounds on the body or signs that she has suffered from unproductive neighbors. If the stomach is strongly swollen, eyes bulging, the scales are covered with bloom or stains - it means that the pet has suffered from illness or poisoning. After inspection, gloves should be discarded.

  1. Check the water parameters. Water is often the main cause of poor health. Take tests with indicators, and make the necessary measurements. The increased content of ammonia and nitrates in water, heavy metals leads to the fact that pets die quickly. If the aquarium has a decorative element made of iron, zinc, copper - this is another pointer. Some fish do not tolerate metal, and suddenly die.
  1. After the test results, draw conclusions. The test will show two results - either you have everything in order in the aquarium, or the water is dirty and there is a surplus of toxic substances in it. In the second case, you need to enable powerful filtering, and make a replacement of 25% of the aquarium water for clean and infused. Dramatically change the parameters of the water is not necessary, it can harm living fish.
  1. But if the water is in proper condition, there may be a number of other reasons why the fish died. Иногда аквариумные питомцы дохнут от голода, переедания, заболеваний, сильного стресса, полученных ушибов после нападения других рыб, возраста. Если рыбки умирают внезапно, нужно делать всё необходимое, чтобы живыми остались другие. Обратитесь к ветеринару, если не обнаружили явных причин смерти питомца.

    ПРОДОЛЖИТЕЛЬНОСТЬ ЖИЗНИ АКВАРИУМНЫХ РЫБОК .

    PH В АКВАРИУМЕ - ФОТО ВИДЕО ОПИСАНИЕ ОБЗОР.

МУТНАЯ ВОДА В АКВАРИУМЕ: ЧТО ДЕЛАТЬ -ОПИСАНИЕ ПРОБЛЕМ ФОТО ВИДЕО.

КАК, ЧЕМ И СКОЛЬКО КОРМИТЬ ЗОЛОТЫХ РЫБОК? ОПИСАНИЕ ФОТО ВИДЕО.

AQUARIUM FISHES WHICH CAN BE WITHOUT OXYGEN AND AIR

HOW TO TRANSPORT AND EXTEND AQUARIUM FISHES INTO THE AQUARIUM?

What to do if a guppy dies?

Unfortunately, sooner or later aquarium fish die. The most common cause is the wear and tear of the body, as a result - its old age. Life expectancy depends on many factors, but it has been proven that large fish live longer than small ones. As for guppies, they belong to small fish, which can grow 5-7 cm in length in an aquarium. Live relatively short: 3-5 years. Why are these fish dying in the aquarium?

Causes of Poecilia reticulata death: water pollution

Guppies (Poecilia reticulata, Guppy) suddenly die one after another? Then you need to do something to prevent the death of other fish. Sometimes razvodchiki go to specialty stores, buy funds or drugs, but nothing helps. If the cause is not found, it will be difficult to eliminate the effect. The main reason for the death of many fish in the home aquarium is poor housing conditions, namely, dirty, inadequate water. Poecilia reticulata is no exception.

Recommended parameters for guppy content: temperature 22-26 ° C, pH 7.0-8.5 pH, hardness 10-18 °. With sharp changes in environmental conditions, the fish will start to hurt. Also, in the absence of weekly replacements of 20% of water with fresh and clean water, guppies will actually breathe their own waste. The lack of high-quality filtration and aeration will also negatively affect fish life.

Watch the video with guppy content recommendations.

Increased concentrations of ammonia, nitrates and nitrites lead to exhaustion of the fish. They can become poisoned with harmful substances suddenly, if the aquarist does not notice the smell of rot, turbidity of water. What should be done in this case? It is important to purify water from impurities with the help of special harmless substances that are sold in stores, or a filter. Completely replace the water should not, but only part of it.

Another reason why the young guppies in the aquarium do not die in time is the unprepared water. Do not run fish into a tank with chlorine-rich water. She should insist 4 days before pouring into the container. You can use dechlorinator, which is sold in some pet stores.

Pay attention to the state of the filter - on the sponge breeding good bacteria that fight against toxic substances and microbes. The main thing is to timely clean the filter filler and replace it if necessary. Disruption of biological balance can lead to a sharp deterioration in the health of fish.

Over-feeding guppies can also cause them to die. Not eaten feed splits, forming ammonium vapors. If you put the fish on a fasting day, at least once a week, and remove leftover food, you can fix the problem. On the day of harvesting, make measurements of the level of nitrates and ammonium, the pH and hardness of water, the level of CO2 and oxygen. If the level of toxic substances is 2 ppm or more, you need to replace 50% of the water, but not immediately, but within a few days. Over time, the microflora will recover. You can not use antibiotics to combat ammonia, otherwise you can destroy all the good bacteria.

Although guppies are considered hardy fish, but under the wrong conditions of the aquatic environment, they can get sick. Diseases are another reason why these fish die in the aquarium. The infection enters the water with poor-quality food, sick fish and infected plants, and then rapidly multiplies in dirty water. A terrible infectious disease of guppy is tuberculosis, or mycobacteriosis. Unfortunately, it is not treated: the fish must be destroyed, and the entire aquarium is strictly disinfected.

The parasitic ciliate Trichodina Modesta can cause the disease trichodynia. Treatment of fish is possible with the help of methylene blue, trypaflavin, attorney salt and other medical preparations. Most often, fry and young fish die from the disease.

Long-tailed guppies with veiled fins can get the so-called "red scab". This deformation is visible on the reddish coating on the tail, later its rays will flake off. In case of delayed treatment, the tail will be "eaten." In this case, you need to do a mechanical trimming of the damaged part of the fin, and add chloramphenicol or salt to the water.


Acclimatization and improper compatibility as a result of the death of fish

If newly purchased fish suddenly die in an aquarium, they probably could not adapt to the conditions of their new environment. Water temperature, acidity and hardness of the new aquarium should be similar to those in which they lived before the purchase. Before you run the fish in a common tank, put them in a two-week quarantine. The difference in pH and dH by one unit can kill the fish. What should be done in order for guppies to transfer new conditions?

Place the portable bag with the purchased fish in a new water, pin it to the glass with a pin. You can run a weak aeration aquarium. After 10-20 minutes you can add a little aquarium water to the bag. It is recommended to repeat the procedure every 15 minutes. After 1.5 hours, you can release the fish in the otsadnik. You can add anti-stress drugs and some feed to the water.

See how to properly transplant fish in the aquarium.

Sharp temperature changes in the aquarium should be avoided. Do not make too frequent water changes, and no more than 30% of the total volume of the tank. Siphon the soil in a timely manner, remove and process boiled water contaminated scenery.

What else are killed aquarium guppies? Perhaps a few novice aqurahumists guess about such a problem as the wrong settlement. And, most surprisingly, other Guppy can be the cause of death. Unsuccessful settlement implies a close environment, incompatibility of characters, disproportion of the number of males and females in the aquarium. If all the males are killed in the kennel, it means that there are too many females on them, or there was a fight between the males in tight territory.


Choose a spacious 50-liter tank for one fish to settle the guppy. On one male settle 1-3 females. Install reliable shelters, plant plants that would prevent conflict situations. Also settle Poecilia reticulate with small, peaceful fishes. Related viviparous fish are their best neighbors (swordtails, mollies and petilia). Do not settle the fish with aggressive, fast and predatory fish. It happens that guppies die of stress and physical exhaustion.

Noticed that the fish jump out of the aquarium, and die right on the floor? Most likely, there is not enough aeration in the water, the fish have experienced a jitter, or the water quality is inadequate. To avoid such a problem, check the behavior of all the inhabitants of the nursery, make measurements of the state of the water.

Why die, die aquarium fish?

Aquarium fish ... What kinds of them just do not happen - big and small, peaceful and not very, schooling and lonely: everyone can find for himself what he needs.

Most of them do not need special care, so they have become quite common favorites, but despite this, before getting these beauties, you should know some rules, without which they just die in the very first hours of their stay in your house.

Fishes necessarily need air — more precisely, water aeration; without oxygen, they, like any living thing, will perish. Before running the fish in the aquarium, you need to make sure that it is clean, not leaking, and the materials used in it do not emit harmful substances.

It is advisable to pour boiling water over the aquarium; The same must be done with everything that will be inside - sand, stones, scenery - and be sure to defend the water for at least 24 hours.

So, everything you need is respected. But after a few days, and maybe immediately the fish began to die. What is the reason - why die aquarium fish? Let's see! The first reason is the wrong adaptation of the fish.

After the purchase it is impossible to simply release it into the aquarium, this can lead to an animal to shock and, as a result, to death.

The second reason may be the lack of oxygen: it is often found if the aquarium is small and there are many fish or they are large - therefore, keep proportions! The third reason may be a disease - it could be either before the purchase, or it could start after, due to a change in the "climate" situation, due to a decrease in immunity. The fourth reason can be poisoning, most often - nitrogen compounds, that is, the decay products of the life of the fish, so the cleanliness of the aquarium should be given special attention. The fifth reason is tap water. Perhaps the human body is not particularly sensitive to the hardness of the water and the content of chlorine in it, but for fish it can be deadly!

The sixth reason can and not be noticed, and why aquarium fish die, immediately fail to understand: it does not always appear immediately. We are talking about the aggression of neighboring fish, and to prevent it you need to know the compatible types of fish.

Here are the main reasons most often found in newbies. There are, of course, such as overfeeding, insufficient sanctification, but they, as a rule, are rarely found. Watch the state of the aquarium, water and fish, and your fish will bring you not only joy, but, perhaps, addition. Good luck!

Why did my gupi fish all die?

Elena Kazakova

WHY DIE FISHING ?? ?
Reason number 1 is poisoning with nitrogen compounds.
For some reason, most novice aquarists, having got the fish, pay maximum attention to their needs to eat and breathe, completely forgetting that the fish also defecate. Ichthyologists say that the waste products of freshwater fish averages up to a third of its weight per day. Try to lock the person in a hermetically closed room, supplying him only with bad food and dirty air. So, the result of the decay of fish waste products are nitrogenous compounds - ammonium, nitrite and nitrate. All of them are poisonous, but the first two are especially toxic to the inhabitants of the aquarium. They are the most common cause of death of fish.
Probable circumstances:
• The aquarium is new - regular or massive death of fish in the first two weeks after launch.
• In the existing aquarium added new fish - the death in the next few days.
• Termination of the filter, making a large amount of feed - the death of fish in the next few days.
Water poisoning with nitric compounds is often accompanied by the appearance of turbidity and an unpleasant rotten smell, but the visual clarity of water is usually not related to its quality.
Crystal clear water and lethal ammonia levels.
Pet shops sell chemical tests to measure the level of ammonium and nitrite in an aquarium.
They are not cheap, but they allow the novice to control the quality of the water in the aquarium with great precision and take measures until the death of the fish.
What to do
• Make several daily changes of water up to 25% of the volume of the aquarium. Water, it is desirable to settle for about a day.
• Reduce feeding to a minimum. Until clarification of circumstances, do not feed at all.
• Check for overcrowding in an aquarium. Get rid of excess fish.
• Check the correctness of the choice of filter for the aquarium of this volume. Make sure that it is working and continuous.
Reason number 2 - the result of an incorrect adaptation.
The water in which the fish was kept in the pet store and the water in your tank can vary significantly in terms of pH, hardness and temperature. When simply “splashing out” into an aquarium from a bag brought from a store, the fish is shocked by all the listed parameters. For a simple example — an instant change in pH — it’s one unit for most fish will lead to death or fatal illness. This difference is sometimes possible even between different aquariums in the house of an amateur, not to mention the aquarium in the store, in which the water may not change for months, but only topped up as it evaporates.
Probable circumstances
• The fish was released into the aquarium without the necessary adaptation process - death within 24 hours, or depressed and death during the following weeks.
For a novice aquarist, the adaptation process should be performed for any new fish, without any exceptions. The contents of the package from the store with water and fish is poured into a vessel of suitable volume. This vessel is filled with water from the main aquarium in batches that do not exceed 5% of the volume with intervals of at least 10 minutes. Transplanting fish into an aquarium is possible only after the proportion of aquarium water in a vessel exceeds 60-75% of the total volume.
What to do, you have already "thrown out" the fish in the aquarium and some have survived, but look depressed? In fact, the forecast is very lousy. These fish are the first candidates for any disease, their immunity is minimal, and the resulting damage to the internal organs is not known. Clean water, good aeration, observation and a bit of luck.
Reason number 3 is a disease.
This reason is peculiar to suspect the majority of newbies, especially since the sellers of most pet stores are very inclined to support the client in his delusions. Why? For a very simple reason - the desire to sell expensive drugs. Meanwhile, the version of the disease should be worked out only when the previous two are marked.
Reason number 4 is tap water.

Olga Solomatina

first let the water stand for three days, then filter, plant the plants, make the soil, buy a pump — arrange all this in the aquarium and in 3 days populate the fish there, feed twice a day such amount of feed that they eat in 5 minutes — no more -the water will deteriorate, watch the temperature of the water — guppies need about 23 degrees — at a lower temperature they get sick, you can also buy sick fish — if they don't eat, they are covered with decoy, fins rot — go to the pet store for medicine, a lot guppies in small volume too no-males can-1 for 1l, females-1 fish for 3 l, if the fish on the surface eagerly grab the air-in the water lacks oxygen-an additional compressor is needed, try-good luck!

Why die fish ???

Svetlana Revyakina

therefore, they die because you have made the most serious mistakes when starting an aquarium. Do not try to populate the aquarium immediately completely, the process of starting the aquarium takes about a month. The new aquarium can not cope with a large number of physiological secretions of fish and invertebrates, so it is more reasonable to carry out the settlement in several stages, within a few weeks. But what has been done is done, now it is necessary to finish the course of treatment (why did you pour Malacht + blue + acriflavin? !!!) Acriflavin cannot be mixed with other dyes, I suspect that now you will die from poisoning. The real piece of advice: replace 50% of the water with an AquaSafe type conditioner, put coal in the filter, buy a vehicle to run a biofilter (Tetra Aqua Bactozim, Nitrivek, what they sell there). Do not feed the fish in the next 3 days, then start with a tiny dose. Keywords for search in the network - "Running aquarium" and "Nitrogen cycle". Download a brochure on the topic: [link blocked by the decision of the administration of the project] "The charm of aquarium husbandry" A better Tetra film about how to properly establish an aquarium, equip, arrange and populate it [link blocked by the decision of the administration of the project] .

User deleted

sometimes it's hard to say, most likely there is a natural selection, here we had a lot of fish at work, they were killed in general, everyone died except one, but she didn’t care, but now she was transplanted into a large Accquarium to others, and I think she’s really cool there , now fed and cared for

Shurik

The disease was struck by the pond itself, an infection in the soil, plants, and fish ... Immediately drop all the sick fish (into the incubator), drain the water and produce the aquarium and its contents and start all over again. New fish do not immediately plant in the main aquarium, settle in another, watch, and then transplant. Business is troublesome. but interesting. Sorry.

R z

we had such garbage. Water settling is complete nonsense! We even boiled water. By the way, the effect was small. Pebbles, shells must also be boiled. The fish are sick, the only question is what. I think that the food is not the same, and by the way, the plant can produce harmful substances. Use not only dry food, you also need live food!

Crown cronin

In new aquariums it is always the case; its flora has not yet been established ... it comes with time. Do not part, the strongest fish will survive, then buy more new ones. It's a pity of course when they die ...

Alexander

I understand the fish began to die after adding the medicine ... And why was it necessary to mix the three medicines? Blue in general ichthyophthiriosis on the drum! Only greens. And the fish die from the medication, most likely due to their mixing. Malachite green is very toxic and harmful to fish !! Therefore, it is used in very small doses.

Why die cockerel fish?

Kondraty Parishes

For an adequate response, there is a lack of data on electrical equipment, its operation, feeding and the appearance of the fish. It would not be bad to clarify with whom they share the aquarium and its volume ...
For example: a micro-aquarium is not able to maintain a higher form of life for a long time.

Elizabeth Halliwell

Aqua from 10 liters (not a ball or a cube), NOT colored soil, only natural 2-8 mm fraction, filter, hot water bottle, live plants. Заливаете водой аквариум, насыпаете промытый грунт слой 5-6 см, заливаете водой и сажаете растения, ставите, включаете фильтр, оставляете на 14 дней, потом ставите грелку, температура 26-27 гр, пускаете петушка.
Далее кормить желательно не менее 2р в неделю замороженным кормом (мотыль хорошо едят) или сухой качественный корм. Кормить 1 раз в день, по чуть-чуть. Голодная рыба - здоровая рыба.
Replacements of 20-35% for separated water once a week, + siphon, washing the filter sponge as necessary.
- and the rooster will have a healthy long life)
and as an option, buy Petya not in a pet store, but from breeders - a guarantee for a young age and health, + consultation
Site about roosters, selection, maintenance, care, help with treatment. There are themes with the sale of beautiful cockerels)
Example 10l
10 more

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