Fin Rot In Fish

For any breeder of ornamental fish, it will be extremely unpleasant when they start to get sick. At the same time, this does not mean at all that the disease will necessarily cause their death, because most of the diseases are successfully treated. To avoid their appearance, it is important to constantly monitor the cleanliness of the aquarium and the condition of the fish themselves.

Fin rot is a disease caused by the bacteria Vibrio Pseudomonas or Aeromonas. This problem is a headache for many fish breeders, ranking first among all diseases affecting aquarium inhabitants. Its danger lies in the fact that in the absence of appropriate treatment, there is a high probability of fish death.

There is one feature – adults survive this disease much easier than young animals, which most often die.

Fin Rot Disease In Fish

The Causes

The pathogenic bacteria live in natural reservoirs, getting into the aquarium through the soil, food, decor, or from new fish bought in the store. Therefore, it is better to immediately place aquarium fish in forced quarantine, and not settle with the rest of the aquarium inhabitants. You just need to leave them for a few days in an old store water tank, gradually adding water from your aquarium to it.

With fin rot, it is the fins of the fish that suffer, which lose their former appearance – they are torn, become worn out. Many beginners take this as the result of mechanical damage, so they do not take any action. In this case, the disease progresses quickly enough, which leads to the death of aquarium fish.

There are several main causes of infection:

  • insufficient care of the aquarium, untimely cleaning;
  • lack of a filter, so the water inside is not clean enough;
  • increased acidity;
  • incorrect temperature conditions in the tank;
  • various factors that can cause stress in fish;
  • rotting plants in the aquarium;
  • improperly selected food, which leads to a deficiency of essential trace elements and a decrease in immunity.

The Symptoms

The symptomatology of this disease is quite typical, so it can be easily identified. With this pathology, you can see:

  • turbidity of fins;
  • the appearance of red spots and stripes is a consequence of the clogging of blood vessels;
  • discoloration of the fins, which become bluish (the color changes from the edges, gradually spreading over the entire surface);
  • breaking off fins;
  • the appearance of sores all over the body – this occurs at the last stage of the disease, so the probability of the death of an aquarium fish is very high.

Who Is Most Likely To Get Fin Rot?

Any fish with a weakened immune system can become infected with these diseases. But most often those who have large enough fins that form folds are affected. These are guppies, scalars, cockerels, goldfish and other individuals.

The further treatment strategy depends on the type of aquarium inhabitant. For example, bettas can recover under quarantine conditions, while angelfish do not tolerate moving to another tank.

At the same time, the former type of fins is far from always restored in recovered individuals. Often there is a noticeable reduction in size, uneven edges.

Read Also: How Long Do Fish live

Fin Rot Disease Treatment In Fish

The success of treatment directly depends on how timely it was started. If symptoms are found in individuals, it is necessary to resettle them in a separate tank, and clean the aquarium itself.

At the initial stages of the disease, a daily replacement of water by 30% and an increase in its temperature to the maximum permissible values ​​helps. You need to find out what is the maximum temperature for each type of fish and choose an average one that would be suitable for everyone. If these actions did not help, then you can move on to more intensive treatment, which involves the use of medicines and household products.

Treatment With Drugs

How to treat fish in an aquarium if changing conditions does not help? Several options are available here. There are specialized drugs for this disease that can be bought in specialized stores and a number of household methods that are also shown to be effective.

Here are just a few possible remedies:

  • Streptocide. It is diluted in warm water, then poured into a tank (or hotel baths are made for infected individuals).
  • Levomycetin. The antibiotic is diluted in a glass of settled water, then poured into the aquarium (ratio – 1:20). The procedure is repeated every 3 days.
  • Furacilin. One tablet is enough for 30 liters. The treatment lasts up to 14 days.
  • Biseptol-480. One quarter of this tablet is enough for 10 liters of water. It is important that the aquarium inhabitants are constantly in this solution until they recover.
  • Bicillin-5. Consumption – one bottle for one procedure (there will be 6 in total). To prevent the antibiotic from degrading, it is necessary to provide a darkening for the aquarium during the treatment.
  • Hydrogen peroxide (3%). Mixes up separately with water, i.e. do not pour peroxide directly into the tank, which can burn fish. The duration of treatment is from 7 to 14 days.

Among the specialized means used to treat aquarium fish, we note Antipar. It is a solution consisting of formalin, malachite green and blue. On average, therapy lasts for a week (it is imperative to turn off filtration, aeration, and exclude sunlight).

Treatment With Salt

Fin rot treatment is possible with the use of folk remedies. Many aquarists begin to salt their fish using the standard dosage of 7 grams per 6 liters of water. Infected individuals are placed in this solution for 30 minutes (2 times a day).

It should be borne in mind that not all varieties of aquarium inhabitants tolerate salt water well, therefore this method is unacceptable for some individuals.

Betta Fish Fin Rot Treatment

To cure an aquarium fish, it is necessary to take into account the characteristics of a particular species. The scheme of further treatment depends on this. Let’s take a cockerel as an example.

When the first symptoms appear in this fish, you do not need to use medications right away. For a start, you can disinfect plants, soil and decor. It is necessary to replace a third of all water, raise the temperature to the maximum permissible values ​​(for this individual). Such conditions must be maintained for several days.

If this does not help, then you can use specialized tools. As a rule, they can be treated in a general aquarium, diluting the product in the dosage indicated on the package.

Prevention Methods

There are a number of ways that fin rot can be prevented. The main one is keeping the aquarium clean. It is necessary to periodically change the water – once a month (for large ones), or once every 3 days (for small ones). It is necessary to rinse the soil and all the decor inside the tank.

Another important point is the overpopulation of the aquarium. It is important not to allow this, and also to ensure that there are no conflicts in the aquarium. For example, catfish and scalars are quite aggressive towards more friendly inhabitants.

When Is The Treatment Useless?

The progression of fin rot often leads to the death of aquarium inhabitants. If the rot has already been localized on the body, then there is a high probability that you will not be able to save the fish. It is important not to ignore the symptoms of this disease by taking the necessary action in time.


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