What Diseases Do Aquarium Fish Suffer From?

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What Diseases Do Aquarium Fish Suffer From?
What Diseases Do Aquarium Fish Suffer From?

Video: What Diseases Do Aquarium Fish Suffer From?

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The following diseases of aquarium fish, their signs and methods of treatment are known: alkalosis (alkaline disease), arguliasis, asphyxiation (suffocation), acidemia, acidosis (acid disease), white-skinned, branchiomycosis, inflammation of the gastrointestinal tract, hexamitosis (octomitosis), gyrodactylosis, glugeosis, fin rot, dactylogyrosis, dermatomycosis (saprolegnia), ichthyosporidiosis (ichthyophonosis), ichthyophthyriosis, osteosis (ichthyophonosis), lepidorthosis, lerneosis, obesity, oodiniosis, poisoning, plistiphorosis (prostudinosis, mycochidosis), trichoidal disease, chilodonellosis, chlorosis, gas embolism, ulcers (peptic ulcer).

White spot disease, semolina, ichthyophthyriosis, photo photograph of fish disease
White spot disease, semolina, ichthyophthyriosis, photo photograph of fish disease

White spot disease, or semolina (ichthyophthyroidism)

The first and most important step in treating a disease is making a diagnosis. For the correct definition of fish disease, there is not enough knowledge obtained from books and magazines, practical experience and, at first, the help of experienced amateurs are required. The most common diseases with pronounced signs can be determined by every experienced aquarist, and only rare, difficult to recognize diseases require special studies for diagnosis using technical means that are not available to amateurs.

To make a diagnosis, three stages of fish examination are carried out:

- anamnesis, i.e. prehistory of the disease;

- preliminary research (behavior change, external examination);

- direct examination (autopsy, examination of internal organs under a magnifying glass, examination of preparations under a microscope).

Studying the prehistory of the disease, you need to get answers to the following questions, which, in some cases, will allow you to suspect the presence of a certain disease:

- whether new fish or plants appeared in the aquarium before the onset of the disease (they can be a source of various pests and infections);

- whether there was a strong fluctuation in temperature (possible cold, temperature shock, etc.);

- where did the food given to the fish come from (poisoning, introduction of pests and infections are possible), whether the fish ate it completely or the remnants were not removed and rotted on the ground (a lack of oxygen is possible), whether there was regular feeding with dry or abundant and monotonous food (possibly inflammation of the gastrointestinal tract);

- whether there was a change in the pH value (acidic or alkaline disease is possible);

Irrigation of scales in fish, lepidorthosis, photo photography of fish disease
Irrigation of scales in fish, lepidorthosis, photo photography of fish disease

Irrigation of scales in fish (lepidorthosis)

- whether new decorative elements were introduced (poisoning is possible);

- whether the next water change has been made (low-quality water with a high chlorine content can cause chlorosis, a sharp change in dH or pH can greatly affect the health of fish);

- do the fish die one after another with different time intervals or are there massive fish deaths (with a gradual deterioration in water quality and with parasites, fish often die separately, although with some infectious diseases their mass death occurs, with a sharp deterioration in water quality, death is most likely fish in a short period of time);

- what changes were observed in the behavior of fish: rubbed against stones, driftwood, soil, plant leaves and other objects; made rocking movements with the body; refused to feed; became lethargic, inactive, etc. The anamnesis is followed by preliminary studies, in which deviations in the behavior of fish from normal are again carefully studied, and then an external examination of the body (darkening of color, the appearance of spots and tumors, local mucus secretion, etc.), gills (rapid breathing, mucus secretion etc.), eyes (clouding, bulging), fins (spread out, compressed, destroyed, etc.).

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Below are some of the signs in which you can suspect the onset of a particular disease in fish.

- The fish rubs against various objects - gyrodactylosis, dactylogyrosis, ichthyosporidiosis, ichthyophthyriosis, osteosis, lerneosis, oodiniosis, trichodinosis.

- The fish produces rocking movements of the body - inflammation of the gastrointestinal tract, gyrodactylosis, dactylogyrosis, ichthyosporidiosis, lerneosis, colds, tuberculosis, chilodonellosis.

- Refusal to feed - branchomycosis, dactylogyrosis, ichthyosporidiosis, osteosis, plastiforosis, tuberculosis.

Cotton wool disease in fish, photo photograph of fish disease
Cotton wool disease in fish, photo photograph of fish disease

Cotton wool disease in fish (fungal disease)

- The fish is inactive - acidosis, branchiomycosis, inflammation of the gastrointestinal tract, obesity, colds, tuberculosis.

- The fish jumps out of the water - alkalosis, acetymia, poisoning, chlorosis.

- Fish rushing around the aquarium - alkalosis, dactylogyrosis, chlorosis.

- The gills are covered with mucus - alkalosis, dactylogyrosis, chlorosis.

- The scales of the fish are raised in certain parts of the body - lepidorthosis, ichthyosporidiosis, tuberculosis.

- Fish often come up to aeration bubbles - ichthyophthyroidism, trichodinosis.

- The skin of the fish grows dull - alkalosis, inflammation of the gastrointestinal tract.

- Rapid breathing of fish - alkalosis, asphyxia.

- The fish is shy - acidosis, poisoning.

- The anal opening turns red - inflammation of the gastrointestinal tract, hexamitosis.

- On the body of the fish, local redness with a wound and abundant mucus - argulez.

- There is bulging in fish - glugeosis, ichthyosporidiosis.

- The edges of the fins of fish are spread out, of a dull bluish-white color - rot of the fins.

- Fish swim in leaps and bounds - ichthyosporidiosis, plastiforosis.

- On the body and fins of the fish, a cotton-like bloom of white or light yellow color - dermatomycosis.

"Aquarium. Diseases and Treatment of Fish ". V. Mikhailov

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