with this personal fishbowl you can relax and enjoy playing with a swarm of fishes. these fishes are not playing a routine, they are reacting on your actions, and the actions of the other fishes.
you can feed them or make obstacles in their way and they will react, you can try to guide the fishes to some place and catch them with a corals wall.
you can change the number of fishes and delete obstacles if you want, or just feed them to see how they react.