The City Council in Monza, the northern city known for its Formula 1 Grand Prix, is barring pet owners from keeping their goldfish in bowls. ''The ruling is intended to transmit a message about the correct treatment of domestic animals,'' the measure's sponsor, Giampietro Mosca, said. ''A fish kept in a bowl has a distorted view of reality and suffers because of this. Also, this type of receptacle generally doesn't have a filter and doesn't allow for good oxygenation of the water, unlike in rectangular aquariums.''