They built a tank for this 8 year old kid who loved to watch TV and sharks, so they made him an 8 gallon tank out of an old TV which freshwater sharks inside. They included a bala shark, a red tailed shark, two albino sharks, an irridecent shark, and I think a catfish that looked like a shark, and 2 guppies. I'm sorry, but that's the worst stocking I've ever seen on that show. I know it's only for entertainment, but they could have at least taught the little kid something.