IMO you are not in a position to say another member sold you a sick fish. I would suspect it became ill under your care. And I think its rude of you to Call Francis out as "copying from google" when you quite apparently don't do your own research and he was so kind as to do it for you.So this weekend, another member, out of ignorance, sold me a wag that had dropsy.
You are being rude to other members, accusatory, and now you have a fish for sale? From the same tank>?
People here have been very very kind to you, offering advice, giving you their time. Try to bear that in mind the next time you post a return message, on this thread of others. This may be "your" thread but this is a community board.