Just to go on about goldfish, the ones i find sick are the ones with the bubbles under there eyes. I think it is terriable and i feel bad for the goldfish. I also have a problem with the fish that have the long tails. Some of them are ok, and i dont have a problem with it as long as it does not hurt there swimming, but if the fish fins are to long and have trouble swimming thats where it should be stoped.

Good article by the way..