Indications; Dropsy disease is an internal bacterial infection often found in the kidneys of a fish.Dropsy disease causes the kidneys to retain body fluids and thus causing swelling of the belly of the fish. In late stages of dropsy disease, the scales of the fish will protrude outwards.Other symptoms include : lethargy, loss of appetite and weak body.There are many possible causes for dropsy, organ failure, poor water quality, poor hygiene, disease, when a disease affects gills, heart, kidneys or liver then dropsy is more likely, Dosage:In feed;100 gm /one ton of fish biomass / 2 times day / regularly 5 days (or) as per advice of an Aqua consultant.