It happened very quickly. There is not much more that I can do besides try CP. I called 5 vets today and four of them wouldn't even speak to me about it and the fifth one wants a $50 office visit and pictures and videos. I understand where they're coming from. Now this fish has passed. I will treat with furan, Metro, copper and treated fish food consecutively now for a while. I've literally spent more on medication then I paid for that fish.