I have a very large goldfish to give away to a good home. He started as a feeder goldfish, but he is now about 7 inches long. The only tank that I have for him is only 10 gallons, and now he is too big for it. If you have a large goldfish tank I'm sure that he would love it. He would probably even do well in a pond. He is very nice to look at but I can't take good care of him.