The Best Fish Bowls of 2021

Fish Bowls, Tanks and Aquariums

There are many types of fish bowls to choose from. Some are simple glass bowls, while others have lights and filtration systems. The best fish bowl for you depends on your space, budget and type of fish. For many fish, a traditional glass bowl is the wrong choice.

Many fish bowls are simply too small. “For most fish, it’s not advisable to keep them in a fish bowl smaller than five gallons,” says K. Brooke Billingsley, a fishkeeping expert for PetKeen. “Some fish, like guppies, may do well in fish bowls as small as three gallons, but there should still be adequate filtration and swimming space.”

Although smaller fish bowls are less than ideal for most fish, Billingsley says they are great for invertebrates. “Small shrimps and snails require little to no filtration, and many people find low tech setups to be a perfect match,” Billingsley says.

Smaller fish bowls can also be used as temporary setups. For any aquatic creature, be sure you have the right heater, lighting, filtration system and water in their permanent home, as well as enough space.

Glass fish bowls

Billingsley notes glass bowls are sturdy, long-lasting and easy to clean. They also have the best seamless finish. However, glass bowls can be heavy and shatter easily if dropped. They also “tend to create a visual distortion, which can make it difficult to see your fish,” says Billingsley. “This is especially true of round bowls.”

Acrylic fish bowls

These are newer, and they’re gaining popularity for good reason. For one, they weigh much less — usually about 50 percent less than glass, according to Billingsley. They’re more affordable, shatter resistant and have less visual distortion, although they can still crack. The main downside? A tendency to scratch.

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