Dropsy or Pine-cone Disease

Dropsy or Pine-cone Disease

Raised scales (rather like a pine cone) and eyes standing out from the head.

Dropsy itself is not a disease, but rather a result of some other cause. Dropsy is a term given to the swelling that occurs internally in the fish. There are multiple possible causes. Sometimes it's not contageous, but sick fish should be isolated and treated since determining the actual cause may be impossible, and also because this will be easier on the fish.

The fish's body will become swelled with fluid it is unable to expel. Eventually the swelling will cause the scales to raise, giving the fish what is called the "pine-cone" appearance.

Diagnosis, One of these situations may be the cause:

  • Sudden swelling: A bacterial infection will cause internal bleeding.
  • Slow swelling: Growing tumors, or even parasites, in the fish may cause it to swell.
  • Slow swelling: Mycobacterium tuberculosis. Highly contageous!

Bacterial dropsy is infectious so treat with an anti bacterial remedy and if possible isolate affected Koi.

See More Bacterial Koi Diseases

Cotton Wool Disease - Columnaris (Flexibacter Columnaris)

Cotton Wool Disease - Columnaris (Flexibacter Columnaris)

Columnaris (Flexibacter columnaris) or Cotton Wool Disease is another bacterial infection. The common name comes from the white tufts that develop around the mouth and spread to the body and fins, often...(click on product image for more details)
Finrot and Ulcers

Finrot and Ulcers

A number of bacteria are associated with finrot, lesions and internal hemorrhaging, notably Aeromonas and Pseudomonas. Ulcers usually start at the site of an injury, the bacteria then infect it causing...(click on product image for more details)