Flavobacterium columnare

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About Flavobacterium columnare (Mouth Rot)

Flavobacterium columnare formally known as Flexibacter columnaris as well as Bacillus columnaris, and Cytophaga columnaris. This is a common gram-negative bacteria which gives the appearance of white fungus on fish but is actually a bacteria. Its name is derived from columnar shaped bacteria, which are present in virtually all aquarium environments.

If left untreated it is usually fatal and is highly contagious. A tank that has had columnaris in it should be completely restarted and cleaned out after an outbreak if all fish have been lost. This disease can be spread easily between tanks from contaminated fish nets, your own hands if they have not been washed in-between tanks, shared containers and even food.

Other names

Columnaris, Cotton-Wool, Cotton-Mouth, Flexibacter, Mouth-Rot, Flavobacterium Columnare, Saddle Back, False Neon Disease, Guppy Disease.

Causes

Columnaris is partly caused by bad water quality, allowing uneaten food to remain in the tank causing this bacteria to multiply, as well as the fish having an inadequate diet or stressed from being introduced to a new tank. Wounds and injuries can easily become infected by this opportunist bacteria.

Symptoms

Symptoms of this condition are as follows:

Treatment

Prevention:

This is a quick acting disease and needs immediate treatment. Be aware that some strains of this bacteria are becoming resistant to antibiotics. So ensure you treat for the full length of the medication.

In order to rid your tank and fish of this disease:

Commercial treatments

King British

Interpet

WaterLife

Pets at Home

API (Aquarium Pharmaceuticals)

Tetra UK

Tetra USA

Jungle Labs (USA)

PondRX USA

References

  1. Dr. Barb - Flipper & Fins
  2. 2.0 2.1 2.2 2.3 Veterinary Medicines Marketed under the Small Animal Exemption Scheme, VMD
  3. 3.0 3.1 Chemical information on the product
  4. Tricide Neo tris-EDTA Solution Against Bacterial Infections

Preventative

References

External links

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