Hi. yall.
I've had sevearl dropsied fish over the past few years. I don't know the cause, but presume it to be bacterial.
when a fish starts to dropsy, I move it into a quarantine tank, not so much as to protect the healthy fish as to be able to treat the sick one by itself.
I have found that feeding LOTS of MediKoi food ASAP makes the dropsy go away. Usually the recovery is "complete" and the affected fish gets to go back to a big tank. But I always lose the dropsied fish within two years. They might not dropsy again, but they fade away.
Over time, I have thought that 3 fish were "cured" only to have them die a couple of months to a couple of years later. Bummer.
But in addition to keeping water quality high and quarantining new fish, I reccommend finding some MediKoi if you see the beginning signs of dropsy. It works for a while at least.
Caroline in San Jose

