My poor Sachi... He's swollen to the size of a marble. :-( I spent hours trying to figure out what he has so I could help find a treatment. After visiting several aquarium stores and browsing the internet for hours I finally found out what's wrong: he's got an internal tumor. He fits the exact picture in a book I found, I know can't be dropsy because in the time it took me to find a prognosis he would have already died if it were dropsy, also he's got a fine appetite and isn't pineconeing. In all honesty, he's not acting sick, he's eating fine, he's swimming happily. His name means "Happiness" in Japanese. Isthere anything I can do to cure a fish tumor? It's a long shot but I do lovethe little guy. Or if not cure, at least treat to make him comfortable? Thanks.