6ddd20e8_Common_diseases_of_goldfish__Treatment
[Disease and Causes] Dropsy Usually caused by bacterial infection. Viral infection, nutritional, metabolic and osmoregulatory problems can also be responsible. [Symptoms] Swelling of the body cavity due to a build-up of fluid. Scales become raised giving a pinecone-like appearance. One or both of the eyes may be protruded. [Reason for Infection] Usually triggered by poor water quality, especially the presence of ammonia and nitrite. Often confined to individual fish. [Action] Test water and improve water conditions immediately. Aquarium salt at a dose of 1- 3g/litre can help to prevent salt loss. [Treatment] 
Can be difficult to treat. A broad spectrum anti- bacteria treatment is the best option in most cases.
Common diseases of goldfish
Treatment