My point in other threads, which was by and large missed by most readers, is that I don't see the sense of jumping through endlessly expensive medications, futzing with the bacterial colonies, the tank mates, and all that, for a white cloud fish or a comet goldfish, that cost 5 for a dollar, ya know what I'm sayin? I mean, if it was a $100 Queen Humuhumunukunukuapua'a, or you live a thousand miles from a fish store, that's one thing.
It's got nothing to do with money, Tando.
It is about bringing a living creature into your home purely for your own personal amusement. To me, doing so implies a committment to providing for that creature to the best of your ability. When you take on a responsibility, you... take on a responsibility. Simply throwing the creature out and buying another teaches you nothing about what was going on in the first place. It
also leaves way too much room for a recurrence of the problem- and that doesn't even take into consideration the ethics of the practice. We're supposed to be striving to do better for the fish in our care-
if we want to be good fishkeepers. You do want to be a good fishkeeper instead of just some schmuck who has fish, right?
spanky37- goldfish are very prone to tumors.
I would
1) Provide as pristine an environment as possible- water change often (check out the "tub to tub" method in the link below) and keep a very close eye on your parameters.
2) Feed high quality foods with as much fresh greens as the fish will eat.
3) Photograph the fish now so you have a reference as to how fast the mass seems to be growing.
4) Browse around
this page starting with the "fish physical" to better determine what is going on.