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Fin rot treatment in the general aquarium

maintenance, care, compatibility

Fins rot: peroxide treatment in the general aquarium

Sometimes an aquarist notices that yesterday there are still healthy small fishes on the edges of the tail or fins, a white border appears. With its growth, the tissues exfoliate from the processes and die. Thus manifests itself one of the most common diseases of aquarium fish – fin rot.

You can fight this scourge in different ways. Very often for this purpose is used, for example, hydrogen peroxide.

Infested with fin rot usually only fish with weakened immunity. Therefore, the prevention of infection with Pseudomonas fluorescens lies primarily in the good care of aquarium inhabitants.

To prevent infection, it is also necessary to disinfect the new soil before it is laid. It is not necessary to plant in the aquarium and no plants taken from ponds, lakes or rivers.

To provoke the development of fin rot in fish, among other things, the water temperature may be too low. Therefore, it is imperative to monitor the correct operation of the thermostat.

When a disease such as fin rot is detected in goldfish, treatment can be carried out either by means of purchase or by the usual home remedies that are always at hand. The same applies to other types of aquarium dwellers. Most often from this disease use:

Sometimes aquarium owners use other drugs to detect a disease such as fin rot in goldfish. Treatment with methylene blue, for example, can give a certain result.

However, this tool is not too strong and does not always help. Of the special preparations purchased, TetraMedica General Tonic and SeraBaktopur are commonly used. This is a very effective means.

You can also try to treat rot with a bicillin-5 or malachite green (not to be confused with a diamond).

Fin rot: treatment in the general aquarium with hydrogen peroxide

Apply H2O2, Of course, it should be right. For treating fish from fin rot, a 3% solution of this substance is used. It is this kind of peroxide that is sold in pharmacies in liquid form.

If necessary, you can make a 3% solution and tablets. For a glass of water they will need 6 pcs.

For the treatment of fin rot you need 2-2.5 ml of product per 10 liters of water.

Of course, it is impossible to pour a pharmaceutical or solution prepared from tablets directly from a glass or bottle into an aquarium. After all, you can accidentally get a stream on some fish and burn it.

The same goes for plants. It is better to dilute the required amount of peroxide with water in a half-liter jar and carefully pour everything into the filter jet.

Add H2O2 When treating a disease such as rot of fins, the aquarium should be 1-2 times a day until the fish is cured (7-14 days).

Since after the use of this tool in the aquarium a lot of dead organic matter appears, during the treatment process, at least 30% of water should be changed every day. Otherwise, rotting debris can cause poisoning in the fish.

Every aquarist is very reverent about his silent favorites and, of course, wants them to delight with their beauty as long as possible. However, a closed system is an ideal breeding ground for pathogens and parasites.

Today we want to tell you about such an attack, like fin rot. The treatment of this disease is discussed in almost every forum dedicated to aquarium fish. From this we can draw several conclusions.

The disease is quite common, and every aquarist sooner or later becomes acquainted with it. And second, there is no consensus on treatment today.

Let’s look at those treatments that have the most positive feedback, which means they can help save your aquarium.

In answer to this question lies the answer, why in each case aquarists are looking for a new method of treatment, and not using the already proven scheme. So, what is fin rot? The treatment of this disease is complicated by the fact that it is only one of the components of a systemic bacterial infection.

That is, it is not possible to identify a single pathogen. Several different types of bacteria are involved in the pathogenesis.

In particular, experiments have shown that different individuals of fish with the same symptoms (fin rot) should receive different treatment. That is why the remedy that has helped some is useless for others.

In fact, there are two options. These are therapeutic baths, where diseased fish are deposited, as well as the addition of a drug to the general area. Which way is more effective to completely forget about such a disease, like fin rot?

Treatment in the general aquarium is considered to be more effective, since you simultaneously carry out the disinfection of the soil, plants, and the rest of the reservoir contents, which can become a source of repeated infection. Therefore, today we will talk about such treatment methods.

The result will be much more effective if you have already noticed the first symptoms of a terrible disease called fin rot. Salt treatment in the general aquarium can help only now.

If you start a situation, more serious means will be required.

First of all, make a good water change, at least 30%, and set the maximum temperature allowed for the breed of fish that live in your tank. If there are individual individuals who cannot tolerate such changes, they are deposited in a separate container. An effective remedy at first is to add ordinary salt to the water, not iodized.

The norm for sensitive fish is two teaspoons per 10 liters of water, and if the fish calmly tolerate salt, you can add 3 teaspoons to the same amount of water. Watch your pets.

If after a few days the situation has not improved, do a 50-80% water change and begin medication.

Potassium permanganate is used to disinfect the waters in the treatment of many bacterial infections, and fin rot is included in their list. Treatment in the general aquarium (photo painted with potassium permanganate water looks quite original) is possible only with the subsequent change of water. In this case, it would be much better to deposit the fish in a separate vessel, where to add 0.5 g per 10 liters of water.

Fish are placed in the solution every two hours for 20 minutes. While the treatment is underway, it is very good to add potassium permanganate and to the general aquarium in order to destroy the causative agent of the disease on plants and soil.

Malachite green – the best solution for the most difficult cases

Oxalate of malachite greens is toxic, however, it helps to effectively cope with this ailment. Perfect for the treatment of viviparous, labyrinth fish, neons and barbs, various decorative crucians.

But for other fish use with caution, so consult with a professional who knows well what is fin rot. Treatment in the general aquarium with malachite green takes place at a temperature of +24. +28 degrees.

During the whole course it is necessary to aerate the water well. 10 mg / 100 l is introduced into the water. Doses are repeated after 7 days.

The treatment itself can last more than a month.

Simple and inexpensive means can help you cope with such a disease as fin rot. Treatment in the general aquarium with chloramphenicol is recommended not only by aquarists, but also by veterinarians. This drug is almost always in the home first aid kit.

The tablets are poorly soluble in water, so you need to put them in a glass and stir well, and then add to the aquarium. Dosage – 200 mg per liter. The solution is poured and left for 5 days.

When this period ends, it is necessary to begin a partial water change.

However, this is not the only antibiotic that helps to cope with this disease. Well proved and Bitsillin-5. This is a penicillin group antibiotic.

It decomposes in the light, so the treatment is carried out late in the evening. Dosage of 500,000 U (one third of the bottle) per 10 liters of water.

Bring this amount every night for 6 days. At the same time the water temperature rises to 26 degrees, it is then that the parasites come out of the tissues into the water, where they die.

Fin rot, or pseudomonosis (Latin Pseudomonas) – is an infectious disease of fish, which has a bacterial etiology. Often found in the general home aquarium, one of the causes of the disease – dirty water and irregular cleaning of the bottom.

Also, fish can get sick due to severe stress (a consequence of improper compatibility or overpopulation of the reservoir), improper conditions of detention. Finning rot treatment is complicated when there are a lot of fish in the aquarium, and it is difficult to determine which of them has become a source of infection for others.

Often males, scalars, neons, barbs, mollies suffer from the disease. Young animals often die, adults have a greater chance of recovery.

To understand how to treat fin rot correctly, you need to monitor the condition of the fish, use special preparations, change the living conditions of pets to the proper ones.


Fin rot appears as a result of the reproduction of the bacteria Aeromonas and Vibrio of the Pseudomonas group. They quickly spread in the aquarium, falling on the fins of fish. Bacteria can get into the water with a sick pet or untreated décor.

If new aquarium fish and plants are not quarantined, they can become a source of infection.

See what a cockerel fish infected with fin rot looks like.

Symptoms of fin rot:

  1. Fin rot in young fish is evident when their tail and pectoral fins disintegrate. In adult inhabitants of the aquarium pathological changes begin with the rotting of the edges of the fins, moving to their base.
  2. One of the first manifestations of the disease is the turbidity of a bluish-white shade on the fins, which can also appear on the edges. Sick fish have a visible blue and white rim, which increases, occupying the entire fin. It is clearly visible in young individuals, whose fins are translucent.
  3. Another symptom of the disease – red edges and spots in the fins. The blood vessels are blocked, causing the fin to decompose.
  4. If the infection is not eliminated in time, it will move from the edges at the base of the fin, which will lead to inflammation and rotting. The rays of the fins disappear, and, as a result, shorten. With fry’s disease, the fins dissolve completely.
  5. Bacteria lead to a common lesion of the fin; they form white-colored ulcers with pus. If the aquarium fish is not cured in time, the fin rot will go to the whole body. Infected tissue will become pale with pinkish hues. Late treatment can lead to fish death.
  6. When infected, a pet may have a clouding of the eyeball.


Fin rot is treatable in an aquarium. In the early stages, it can be stopped by water changes (30% of the total), by raising the water to the maximum possible for sick pets.

It is advisable to drop off both healthy and sick fish to quarantine in different tanks, or sprinklers. If water changes and warm water did not help to eliminate the disease, you need to begin medical treatment.

    For the treatment of infection, you can use chloramphenicol tablets, in the proportions of 1 tablet per 20 liters of water. The drug should be crushed to the state of the powder in a small bowl with infused water, and pour into the tank.

    Every three days you need to make a replacement of 30% water, and with them add a new dose of the drug. It is necessary to treat fish until their condition returns to normal.

Look for one way to treat fin rot.

  • If all fishes have a common aquarium, then all of them can be treated with streptocide. 1.5 grams of the drug should be applied in proportion to 10 liters of water. Also, the tablet must be dissolved in a small container of water, then pour into the tank. Another way to treat streptocid is to take a 6-liter glass container and dissolve 1 tablet of the drug in it. Heat in water temperature to 28 ° C. Dip a sick pet into the liquid for 30 minutes, then place it back in the sediment bowl.
  • Bitsillin-5 – a good tool to eliminate the infection. Sold in a dose of 1,500,000 units. For treatment, use 1/6 of the vial, dissolving the drug in 10 liters of water. It should be poured into a bath with infused water, and run the infected fish into it for thirty minutes. Manipulations are repeated for 6 days. During this period, the entire dose of the drug will be used.

  • Biseptol-480 can also cure ailment. Pill medication tablets into powder, stir with water, and pour into the aquarium. For 5 liters of water you need 1/8 of the pill. The course of treatment is one week.
  • Fin rot can be destroyed with salt. To do this, dissolve 3 teaspoons of salt in a 5-liter container and place them in salted fish liquid. For the treatment of calligate, tarakatum and catfish corridor you need to take salt 2 grams per liter of water.
  • During the quarantine period, disinfect the tank (decor and vegetation) with Bicillin-5 solution.
  • Among the common diseases of aquarium fish, fin rot takes a firm place. Its external manifestations fully justify the name.

    As a rule, the first signs of this disease are characterized by clouding and white bloom on the ends of the fins and tail. As the disease progresses, the edges gradually become disheveled and pieces begin to fall off. If no measures have been taken to cure the individual, the rot reaches the base of the limbs until ulcers form in their place.

    At this stage, the fish usually dies.

    The initial stage of treatment is to test and improve the internal environment of the aquarium. This includes a whole range of activities and is carried out consistently and entirely.

    First you need

    • clean the filters
    • remove rotten algae from the tank, if any.
    • boil the soil, net, decor for 15-20 minutes before returning it.

    The next stage is the replacement of water. The volume of new liquid should be about 30%.

    It is advisable to raise the temperature of the water to the maximum tolerated by this type of fish.

    But here it is important not to forget about the other inhabitants of the aquarium. It may be that the rest will not suffer an increase in temperature.

    In this case, the sick fish can be removed, and you can wait a few days without warming.

    If her condition begins to improve, then no more measures need to be taken.

    If the rise in water temperature did not contribute to a cure, it is necessary to apply a drug treatment. As a rule, in the case of a simple form of the disease, it will consist in adding a solution of a certain substance to the general aquarium in the recommended dosage or in taking the treatment baths separately.

    Let us consider in more detail, with the help of what drugs you need to carry out procedures and how long to treat the fish.

    • Adding Levomitsetina to the general aquarium. It is necessary to dissolve 1 tablet in 20 liters of water and every 30 days change 30% of the total volume of water for the medicinal solution until complete recovery.
    • Salt baths (not suitable for Tarakatum and some other species, need prior consultation with a specialist). Dissolve 1 tablespoon of salt in 10 liters of water and run the sick fish into the solution for 30 minutes.
    • Biomitsin treatment. 1.5 g per 100 liters of water. The preparation is brought in the general aquarium once a week. The course of treatment is long – 2-3 months.
    • Baths with potassium permanganate. 1 g per 20 liters of water. In this case, you must first dilute the potassium permanganate in a separate container, then pour half into the total volume of water, run the fish, wait 5 minutes and top up the remaining liquid. Application time – no more than 10 minutes, in the morning and in the evening.
    • There are a number of special antibacterial drugs that can be purchased at a veterinary pharmacy, in consultation with a pharmacist or veterinarian.
    • Streptocid treatment. 1.5 g per 10 liters of water. First dissolve, then add to the aquarium. Or use in the form of trays in a dosage of 1 tablet per 6 liters of water. They put a sick fish in them for 30 minutes.
    • Formalin baths. 1 ml to 6 liters of water. Acceptance time is 15 minutes. To test the tolerance, you should first place the fish in the solution for a shorter time, and if it becomes bad, stop the procedure and transfer the patient to clean water.

    At the end of treatment, the process of finning will gradually begin, which will mean the success of the procedures performed. If this does not happen, another treatment should be applied.

    Also, after the final recovery, the general aquarium should be disinfected with a solution of chloramine, and the whole inventory and soil should be boiled again.

    If we start treatment in a timely manner, then all the inhabitants of the aquarium will be saved without great expense and complicated manipulations.

    Fin rot – description of treatment symptoms video video photo.

    For the treatment of the disease, fin rot uses half-hour baths with a solution of polymyxin or levomycetin preparations. 60 mg is dissolved in 1 liter of water. medication.

    Apply for five days. Methylene blue is also effective (the solution is prepared with the calculation of 10 mg. Per liter).

    Important: in the treatment of baths, the water temperature should be the same as in the aquarium – the drops are destructive for sick pets.

    It is traditionally used and Antipar treatment also gives a good result, but it is better to use it in a separator, since the components of the preparation negatively affect biofiltration, and many aquarium plants are very sensitive to them. The drug is used according to the instructions.

    Baths – a strong and safe method for the general aquarium. But, for example, for a scalar he is not very convenient: frequent transplants can even more traumatize them, and so sick and vulnerable because of their shape fins. Some aquarists advise catching scalar hand, but the heat drops are harmful to a weak fish.

    Therefore, it is better to set the scalar separately for the entire recovery period or to carry out the treatment process in the main container.

    In the general aquarium, it is possible to treat fin rot with streptocide. The drug is dissolved in a separate container (as it is poorly soluble) at the rate of 3 g per 20 liters of water, pour the solution into the aquarium.

    Specialized “aquarium” drugs for the treatment of fin rot – malachite green, biomitsin, bicillin-5. The dosage and duration is calculated according to the instructions attached to the drug.

    It should be noted that for some species of bacteria, bicillin may not be dangerous – in this case, it remains only to monitor the result.

    But when using any bactericidal agents in the main aquarium, be prepared for problems with biobalance: together with the disease-causing ones, these drugs kill most of the “beneficial” microorganisms.

    In the course of treatment, it must be remembered that the regeneration of the fins of the fish takes time, their body is weakened during this period, and the course of treatment must continue until you are confident of a positive result. In under-treated fish a new flash of flash rot is possible, from which it will be more difficult to save them.

    Aquarium Disinfection to Prevent Re-Outbreaks

    Alas, but small sea or river inhabitants are subject to diseases that can not only greatly spoil their appearance, but also completely destroy the population of an artificial reservoir. In the list of infectious diseases of fish, fin rot occupies a special place.

    She is a frequent guest in home aquariums, and even aspiring enthusiasts need to know how to deal with this most dangerous problem.

    First of all, the tank should be cleaned and the water should be changed; the walls of the aquarium should be treated with special bactericidal agents (Melafix, Myxazin and others). Soil and fixtures can be disinfected by boiling, and algae can be disinfected with the drug Bicillin-5.

    For treatment in the general aquarium of such diseases as fin rot, use biomitsin, white streptotsid.

    Not bad helps the combination of copper sulfate with a solution of malachite green (5 drops of each drug per 10 liters of liquid). First, the drugs are dissolved in a separate small container, and then they are gradually poured into the tank.

    Examine your fish regularly, so as not to miss the re-development of the disease, treatment of fin rot in your general aquarium will be more successful if you start it in time.

    How to treat guppies from fin rot :: guppy diseases :: aquarium fish

    Guppi fin rot is a bacterial disease that many fish species are susceptible to. If it is detected in time, then it is successfully treated at home.

    The question “opened a pet store. Business is not going. What to do? “- 2 answers

    Fin rot appears in fish for many reasons. Reduced immunity in fish, the emergence of new inhabitants of the aquarium, poor-quality replacement of water – all this contributes to the spread of fin rot. If the disease manifested itself due to poor maintenance of the fish, then conditions should be changed for the better.

    If the rot struck the guppy, then you should start to treat the fish.

    The fish have pale, thin and frayed fins, they often tend to fall off. It is necessary to start treating during the period when the fins begin to turn pale, otherwise fin rot will move to the body of the fish, and the fish will die from it.
    Muddy eyes. Fin rot gets to the aquarium through food or when new infected individuals are settled.

    Poorly purified water is an ideal medium so that bacteria begin to multiply, which further leads to decay. Water should be changed at least 20% in the aquarium every week.
    The decrease in resistance (resistance) to diseases in fish appears when the temperature of the water decreases. It promotes the proliferation of bacteria causing fin rot.

    This disease is very well treated, the main thing is to take all measures in time.
    If you find diseased inhabitants of the aquarium, you need to replace the water by 30% and bring the water temperature back to normal, ideal for maintenance. If the guppy “lives” with other fish, it should be deposited in another tank for the duration of the treatment.

    Drug treatment is carried out as for all inhabitants of the aquarium, and individually.
    Dissolve 1 tablet of chloramphenicol in 20 liters of water. Previously, “Levomitsetin” must be crushed into powder and mixed with a small amount of water.

    The medicine must be poured into the aquarium with fish. This procedure is necessary to spend 3 days.

    At the same time, water should be replaced, with the addition of a medicine until the fish are completely cured.
    Streptocid treatment. It is necessary to dissolve 1.5 g of powder in ten liters of water and pour it into the aquarium.

    Hold the guppy in the solution for no more than 30 minutes. This procedure is carried out 1-2 times a day, 4-5 days.
    Salt baths. Dissolve 3 teaspoons of salt in 6-7 liters of water and keep the fish for 20 minutes.

    Use edible salt, which is by no means iodized.
    Also, treatment can be carried out with the help of such drugs as “Bicillin 5”, “Furacillin”, “Biseptol”.
    When it is a cure for fin rot, it is necessary to repeat the course in 5–7 days in order to strengthen the result. Usually, the fins after defeat and timely treatment are restored slowly, it all depends on the condition of the fish and on the circumstances of its content.

    Fin rot will not start in aquariums that are in perfect condition.

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