Once again Cody is right on, bass do make good pet fish. While in college my roommate was a nut for aquariums. We had a smallmouth bass that we sampled in a north Georgia stream. We thought it was really cool because there are not too many smallmouth around here. He was about 2 inches when we put him in and grow to around 6. he dominated the tank. once he figured out food came from above nothing else could get close to the top of the tank. He even managed to intimidate a clown knife much larger than himself. Once he graduated to feeder gold fish the fun began. He would eat goldfish like no tomorrow. It would get to to the point where he would open his mouth to eat a goldfish and two would swim out of his mouth. It seemed that he could he his own weight in fish, maybe more weight. He was a stone killer, we called him the #1 hammer.