In case of a mass infestation symptoms occur

In order to be on the safe side and to prevent a widespread spreading in the entire Koi population, you as a responsible Koi keeper should definitely consult your Koi dealer in case of illness. In the following you will find a very extensive list of known koi diseases, information about the pathogens, the occurrence of the disease.

Treatment of the diseases should never be attempted alone without professional advice (experiment).

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Symptoms of a mass infestation Symptoms of a mass infestation In case of a mass infestation symptoms occur In case of a mass infestation symptoms occur

The first recognizable signs

Swollen or reddened skin

Putting on the fins

standing on the bottom

The koi swims near the fresh water inlet

The koi flutters its pectoral fin while swimming

The koi stands alone

Causes of a disease of the Koi are many

No treatment without exact diagnosis

In some cases it has been observed that after approx. 2 – 6 weeks of treatment, the symptoms of the disease appear again more frequently.

The reasons were

Use of wrong medication

Change in water values due to treatment

lack of control treatment

Costtia

Costia can occur at temperatures from 2 to 30 C. The parasite multiplies best at temperatures of 13 to 15 C. The reason for this is that the immune system of the koi at these temperatures is not as strong as it should be.

Crap Edema / Sleepy Disease Virus (CEV/KSDV)

Crap Edema / Sleepy Disease Virus – CEV/KSDV- The sleeping disease makes the Koi fish first sluggish and sleepy. In up to 80 percent of cases, the infection is fatal. Infected fish usually lie motionless at the bottom of the tank and behave apathetically. Typical symptoms are also sunken eyes, skin changes and swollen gills. In severe cases, the gill tie is affected to such an extent that the oxygen supply is also impeded. Especially with weakened fish. In juvenile fish, Chilodonella appears as a pathogen. The parasite can be detected on the skin and gills. In case of a mass infestation symptoms occur .

Ichthyo (white spot disease)

This parasite is feared by koi lovers. Especially because it multiplies rapidly in the summer months. The pathogen can be detected with the naked eye, as the parasite is found in the fish gullet.

Gill worm (skin worm)

The gill worm can be easily distinguished from the skin worm. Since the gill worm lays eggs that hatch later, you can even see the egg in the body of the worm under the microscope. The skin worm hung.

KHV Koi herpes virus

KHV (Koi Herpes Virus) is a disease that only kills koi and carp. It is highly contagious and reportable as it is considered an animal disease ( 9 TierSG) and simply the super-GAU .

Trichodina

Hardly any koi does not have at least some of these distinctive parasites on the skin or gills. With its hooked crest it rasps off the upper layers of skin from which it then feeds. Egg.

Carp louse (Argulus)

Different species of the carp louse "Argulus" exist, it is a representative of the branchiures. The carp lice are very dangerous skin parasites, which also infest trout, cyprinids, pike, perch and eels. It is a small parasite but you can see it well, the size is ca.

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