TO be honest i bought him with the lumps he was one of six bought to a shop as the owner said they had all grown to big the two i got were the ones left and i could not leave him on his own , the tank is huge built in to a oak cabinet the tank is 5ft long by 2 ft wide by 3ft6inch height, yes...
Found this forum and im hoping some one can help tell me whats up with one of my goldfish it has lumps at the base of tail it is very difficult to find vets with fish experience any help appreciated india x