When a fish has dropsy it is usually too late. Dropsy is not an illness itself but a symptom of another disease. Dropsy occurs when the underlying disease has caused kidney failure; the kidneys no longer work and the body swells up with retained fluid. Once the fish reaches this state there is usually nothing that can be done, I'm afraid.
If he has also stopped eating it is not a good sign. I'm afraid you have a difficult choice - do nothing and wait until he passes, or euthanasia. Take some time to think it over and if you decide on euthanasia, we can tell you the way to do that.
If he has also stopped eating it is not a good sign. I'm afraid you have a difficult choice - do nothing and wait until he passes, or euthanasia. Take some time to think it over and if you decide on euthanasia, we can tell you the way to do that.