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Columbaria fish disease – symptoms, treatment, prevention

Hello, friends! Today I want to describe a disease of aquarium fish called Columnariosis.

This is one of the most widely encountered aquatic organisms in the aquarium. The causative agent of this infection is a rod-shaped bacterium called Flexibacter columnaris, which is similar in some symptoms to fungal sores.

Another name for this aquarium fish ailment is oral fungus.

Those parts of the body of the fish that were prone to the disease are covered with white formations that are similar in their consistency to cotton. It is because of this symptom that columnaria is confused with other fungal sores and fish do not begin to be treated for that. I want to note that, compared with the fungus, the formations caused by columnaria are grayish and more granular and coarse.

Compared with the rest of the fungus, this sore develops more slowly in the fish’s body and can be carved only with the formation of white down around the mouth of the fish, on the fins and edges of the scales.

The main feature of columnaria is the possibility of bacteria spreading only in a freshwater body and high water temperature, which leads to the spread of infection in tropical home aquariums. The most favorable environment for columnaris is the temperature range of water 28-30 degrees Celsius.

In general, healthy fish are not susceptible to this disease, since such individuals are immune in their immune system. But the situation is different with an infected fish, which contains such a number of bacteria that involuntarily turns into a distributor of infection, which can lead to an outbreak of the disease in weaker individuals.

Sometimes, this disease goes away without any external symptoms and the fish dies literally within three days. If you do not take time to destroy the pathogen, the mortality of fish in the aquarium can reach 100%. Vigorous animals (sword-bearers, mollies, petilles, guppies) and labyrinths (pearly gourami, marble, lyalius, lunar gourami, etc.) are susceptible to this disease.

But this does not mean that, for example, red neons cannot get sick. Not at all!

The main factors affecting the spread of sores are the overpopulated aqua and a small volume of the aquarium. If you read my articles about aquarium fish diseases (part 1, part 2 and part 3), then you should know that in the treatment of fish you need to increase the temperature of the water in the aquarium. Only with this filth, this option does not roll, because with increasing water temperature, the level of oxygen dissolved in the aquarium water is noticeably reduced, which is just on hand to our parasites and the fish will move horses faster.

If the water temperature rises, the bacteria will begin to multiply and settle on the gills, which will subsequently lead to oxygen starvation. And then the inevitable demise of the fish.

– affected fish can sway in place or move around the aquarium in spurts;

– complete apathy to all aquarian living creatures and the clamping of fins is the first sign of the disease;

– at the initial stage of the disease, grayish formations may appear near the mouth, on the gills, on the head or fins;

– very often the infection gets into the oral cavity;

– the affected areas of the body are covered with grayish-white down and the scales at the edges become white;

– very quickly, white spots of up to 5 millimeters in size will cover the whole body of the fish, and then this rubbish will begin to eat away the skin of the fish to the muscles;

– the affected dorsal fin is transformed into a saddle;

– bruises with a thin border on the edges are possible on the skin of the fish, which subsequently leads to the destruction of the skin of the fish of the upper layers;

– if the sore has struck the gills, the gills may decompose and change their normal color to dark brown;

– Columnaria in the defeat of the internal organs of fish causes the accumulation of fluid in the eyes, which then contributes to strains;

– broken fins will tell about the last stage of the sore

If you notice the first signs of disease in your pets with columinary, it is necessary to treat the aquarium as soon as possible, since the infection spreads very quickly through the aquarium and other inhabitants can be in mortal danger. If you see one sick fish, better treat the entire aquarium at once, than throw away all dead fish.

The bacteria Flexibacter columnaris prefer hard water and a pH over 6.0. One way to slow down the development of this sore is to lower the above parameters, only smoothly, so as not to cause osmotic shock in the fish, which can lead to their death.

In the treatment of columnaire fish, baths with the use of phenoxyethanol have proven themselves very well. Also, methylene blue and the drug Merbromin do quite well with their task. It is often necessary to use antibiotics, as the sore struck the internal organs of the fish.

Do not forget to properly sanitize the general aquarium in which you keep your pets, otherwise there may be a re-outbreak of the disease.

After buying a new fish in a store or house, do not rush them immediately to the general aquarium, better place them in quarantine for several weeks. While purchased individuals will be in quarantine, watch them, their behavior and condition. Pay attention to those fish that have fins clamped and who love solitude.

If you noticed the above symptoms in fish when buying, immediately refuse to buy them, otherwise you can add trouble to your tank.

When buying, pay attention to the tank in which the fish were kept. If the number of fish did not correspond to the volume of the aquarium, then there is a great chance to pick up the infection from there.

Regularly clean your aquarium and disinfect everything in it. Do not forget about the mandatory regular water changes. If, however, the first symptoms appear in the fish, then the water should be changed every day during the whole treatment until the preconditions and symptoms of columnaria disappear.

These activities help to reduce the number of harmful bacteria and you can overcome the disease.

What drugs can be used in the treatment of

Erythrocycline and salt, Oxacillin, Oleandomycin, Rivanol, Lincomycin, Levomycetin, Geomitsin, Tetra Medica General Tonic, Sera baktopur

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