I was wondering who here has the oldest fish. I have a goldfish that is 15 years old. It is close to 14 inches long and about 3 lbs or more. When I first got my fish Stripe (also with Goldie who died when I was deployed to Iraq) they were less then an inch big. I won them at the fair and we threw them in to a tank outside that the cows drank out of and now Stripe is healthy and so big. He spends his entire time outside in a 150 gallon or a 300 gallon tank with a heater in the winter.