When I was a kid several years ago someone gave me a fish for my aquarium as a gift (at the time I was unaware of the large size the species could attain). When I first got the pangasius catfish, he was 3" long, and now, six years later, he's 10" long and is being housed in a 90 gallon tank, obviously too small for his size. This catfish (Sparky) is in good health and free to a good home.