Dropsy
The common physical characteristic of this disease is a hollow or swollen abdomen. The
fish's scales may stand out in these swollen areas. It is easy to mistake such fish for
pregnant females. The fish appear listless and lose appetite. Viruses as well as bacteria
can cause dropsy. Bad water or infected food is things that can lead to dropsy out brakes
in your aquarium. Once the damage reaches the kidney, the condition becomes almost
incurable. The disease must therefore be caught early if you should be able to save your
fish. This disease is unfortunately very difficult to cure even if discovered early. Dropsy
is however is not highly infectious. Dead fish should still be immediately removed from
the aquarium; otherwise healthy fish may come and eat the dead one. Commercially
available remedies do best.