It's cruel and harmful to goldfish.
Here's why:
* Limited Space: Bowls offer tiny spaces with no room for swimming or hiding. Goldfish need at least 10 gallons of water per fish, and even that is a minimum.
* Poor Water Quality: Small volumes of water become polluted quickly. Goldfish produce a lot of waste, leading to ammonia build-up, which is toxic.
* Limited Oxygen: Bowls have a small surface area for oxygen exchange. Goldfish need a constant supply of oxygen, which is harder to maintain in a bowl.
* Temperature Fluctuations: Bowls are prone to drastic temperature changes, which can be harmful to goldfish.
Alternatives:
* Aquariums: Choose a tank that is at least 10 gallons for each goldfish.
* Filtered and Heated: Install a filter and heater to maintain good water quality and temperature.
Goldfish deserve a proper living environment. Please do your research and provide them with a safe and healthy home.