Dropsy is the buildup of fluid inside the body cavity or tissues of a fish. Dropsy is a symptom rather than a disease unto itself and can indicate a number of underlying causes including bacterial infections, parasitic infections or liver dysfunction.[1]
Because dropsy is a symptom of an illness, its cause may or may not be contagious. However, it is standard practice to quarantine sick fish to prevent spreading the underlying cause to the other fish in the tank community.[1]
By the time a disorder reaches the point of causing dropsy it can often be fatal and at the very least the fish is very ill and requires immediate quarantine and treatment. [1]
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