9 Best Saltwater Aquariums 2025: According to Reviews | Chewy

The 9 Best Saltwater Aquariums

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How we created this saltwater aquarium list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best saltwater aquarium.
We scanned thousands of customer reviews and ratings and scored each product based on its performance against each of the key considerations. We then considered how popular a product is with Chewy customers and combined that with its key consideration scores to create the list of the best saltwater aquariums.

Key saltwater aquarium considerations

Compatibility

Durability

Ease of Use

Effectiveness

1
Aqueon LED Fish Aquarium Starter Kit, 10-gal
Aqueon LED Fish Aquarium Starter Kit, 10-gal
Aqueon LED Fish Aquarium Starter Kit, 10-gal
Aqueon LED Fish Aquarium Starter Kit, 10-gal
Aqueon LED Fish Aquarium Starter Kit, 10-gal
Aqueon LED Fish Aquarium Starter Kit, 10-gal
Aqueon LED Fish Aquarium Starter Kit, 10-gal
Aqueon LED Fish Aquarium Starter Kit, 10-gal
Aqueon LED Fish Aquarium Starter Kit, 10-gal

Aqueon LED Fish Aquarium Starter Kit, 10-gal

Rated 4 out of 5 stars
5
$97.65Chewy Price

Is this saltwater aquarium right for my pet?

Material

Glass

Aquarium Type

Freshwater, Saltwater

Capacity (Max)

10-gal

Fish Type

Marine Fish, Tropical Freshwater
2
Coralife LED BioCube Aquarium Kit, 16-gal
Coralife LED BioCube Aquarium Kit, 16-gal
Coralife LED BioCube Aquarium Kit, 16-gal
Coralife LED BioCube Aquarium Kit, 16-gal
Coralife LED BioCube Aquarium Kit, 16-gal
Coralife LED BioCube Aquarium Kit, 16-gal
Coralife LED BioCube Aquarium Kit, 16-gal
Coralife LED BioCube Aquarium Kit, 16-gal
Coralife LED BioCube Aquarium Kit, 16-gal

Coralife LED BioCube Aquarium Kit, 16-gal

Rated 4 out of 5 stars
3
$349.95Chewy Price

Is this saltwater aquarium right for my pet?

Material

Glass

Aquarium Type

Saltwater, Freshwater

Capacity (Max)

16-gal

Fish Type

Tropical Freshwater, Marine Fish
3
Tetra Glass Aquarium, 20-gal
Tetra Glass Aquarium, 20-gal
Tetra Glass Aquarium, 20-gal
Tetra Glass Aquarium, 20-gal
Tetra Glass Aquarium, 20-gal

Tetra Glass Aquarium, 20-gal

Rated 0 out of 5 stars
$83.38Chewy Price

Is this saltwater aquarium right for my pet?

Material

Glass

Capacity (Max)

20

Fish Type

Betta, Bottom Feeder, Cichlid, Discus...
4
biOrb Classic LED Fish Aquarium, Silver, 4-gal
biOrb Classic LED Fish Aquarium, Silver, 4-gal
biOrb Classic LED Fish Aquarium, Silver, 4-gal

biOrb Classic LED Fish Aquarium, Silver, 4-gal

Rated 0 out of 5 stars
$95.45Chewy Price

Is this saltwater aquarium right for my pet?

Material

Acrylic, Plastic

Aquarium Type

Freshwater

Capacity (Max)

4-gal

Fish Type

Tropical Freshwater, Marine Invertebrate, Betta, Goldfish...
5
Tetra Glass Aquarium, 29-gal
Tetra Glass Aquarium, 29-gal
Tetra Glass Aquarium, 29-gal
Tetra Glass Aquarium, 29-gal

Tetra Glass Aquarium, 29-gal

Rated 0 out of 5 stars
$116.65Chewy Price

Is this saltwater aquarium right for my pet?

Material

Glass, Metal, Steel

Capacity (Max)

29

Fish Type

Betta, Bottom Feeder, Cichlid, Discus...
6
Aqueon Standard Glass Rectangle Aquarium, 10-gal
Aqueon Standard Glass Rectangle Aquarium, 10-gal
Aqueon Standard Glass Rectangle Aquarium, 10-gal
Aqueon Standard Glass Rectangle Aquarium, 10-gal

Aqueon Standard Glass Rectangle Aquarium, 10-gal

Rated 0 out of 5 stars
$46.99Chewy Price

Is this saltwater aquarium right for my pet?

Material

Glass

Aquarium Type

Freshwater, Saltwater

Capacity (Max)

10 gallons

Fish Type

Tropical Freshwater
7
Tetra Glass Aquarium, 10-gal
Tetra Glass Aquarium, 10-gal
Tetra Glass Aquarium, 10-gal
Tetra Glass Aquarium, 10-gal
Tetra Glass Aquarium, 10-gal

Tetra Glass Aquarium, 10-gal

Rated 0 out of 5 stars
$52.99Chewy Price

Is this saltwater aquarium right for my pet?

Material

Glass, Steel, Metal

Capacity (Max)

10

Fish Type

Betta, Bottom Feeder, Cichlid, Discus...
8
Underwater Treasures Aqua One Betta Duo Aquarium, 5.3-gal
Underwater Treasures Aqua One Betta Duo Aquarium, 5.3-gal

Underwater Treasures Aqua One Betta Duo Aquarium, 5.3-gal

Rated 0 out of 5 stars
$109.99Chewy Price

Is this saltwater aquarium right for my pet?

Material

Glass

Aquarium Type

Freshwater

Capacity (Max)

5.3-gal

Fish Type

Tropical Freshwater, Marine Fish
9
Tetra Glass Aquarium, 5.5-gal
Tetra Glass Aquarium, 5.5-gal
Tetra Glass Aquarium, 5.5-gal

Tetra Glass Aquarium, 5.5-gal

Rated 0 out of 5 stars
$49.99Chewy Price

Is this saltwater aquarium right for my pet?

Material

Glass, Steel, Metal

Aquarium Type

Freshwater, Saltwater

Capacity (Max)

5.5

Fish Type

Tropical Freshwater, Betta, Bottom Feeder, Cichlid...