It is illegal to carry a fishbowl or aquarium onto a bus because the sound of the water sloshing may disturb other passengers.

Sec. 106-166. Fishing in parks without permission or during closed season prohibited. It shall be unlawful for any person to kill, take, snare, pursue, catch or have in possession any fish within the limits of the city parks without the authority of the board of commissioners of such parks or during the closed season, as…