9 Best 4 gallon fish tanks of 2025

Save up to 25% off

Best Choice

1

biOrb
biOrb Classic 15 Acrylic 4-Gallon Aquarium with White LED Lights Modern Compact Tank for Tabletop or Desktop Display, Black-Trimmed Tank

18% Off
Main highlights

Compact_Aquarium_for_Small_Spaces
The CLASSIC aquarium offers a 360-degree view, is made from durable acrylic, and includes a 4-gallon tank ideal for desktops.

Perfect_for_Desktop_Display
Ideal for small spaces such as desktops or tabletops, providing a stunning visual display with its compact and durable design.

Ease_of_Upkeep_and_Aesthetic_Appeal
Customers highly praise the aquarium's beautiful design and ease of maintenance, making it a favorite among fish enthusiasts.
Key specs
- Accessories:Air pump, transformer, filter
- Water Parameters:Starter water treatments
- Filtration:5-stage filtration
- Tank Type:BiOrb fishbowl
- Size:4-gallon
9.7

Exceptional

Our Rating

9.9
Simple to use

9.3
lasts a long time

8.9
Easy to build
How do we rank?

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Value for Money

2

MarineLand
Marineland Portrait Glass LED Aquarium Kit, 5 Gallons, Hidden Filtration,Black
Main highlights

Sleek Design and Lighting
Rounded glass and LED lighting enhance viewing and ambiance.

Perfect for Small Spaces
Ideal for dorms, apartments, and desktop setups.

Praised Hidden Filtration
Innovative filtration system keeps tank clean and aesthetic.
9.6

Exceptional

Our Rating

8.9
for starters

8.9
dim light

8.9
Noise level
3

TARARIUM

4 Gallon Betta Fish Tank,Small Fish Tank with Filter and LED Plant Light and Filter System, Betta Shrimp Guppy Jellyfish Starter Kit Self Cleaning Glass Aquarium
9.3

Excellent

Our Rating
4

Craftsboys

Craftsboys Fish Tank, 4 Gallon Nano-Aquarium, Upgrade Filter System and LED Light, for Freshwater & Marine, Filter Balls Included (4 Gal)
9.2

Excellent

Our Rating
5

fishkeeper

fishkeeper 4 Gallon Fish Tank Starter Kit, Small Aquarium with Filter and Adjustable 3 Color Lighting Self Cleaning Fish Bowl Rimless Aquarium for Beginners (Freshwater Fish Tank)
9.0

Excellent

Our Rating
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6

Tetra
Tetra Whisper 4i Internal Power Filter, Filtration for Aquariums Between 1 and 4 Gallons
Main highlights

Filter for 4 Gallon Aquariums
This Whisper Internal Power Filter uses small filter cartridges and adjusts easily to high or low water levels.

Ideal for Small Fish Tanks
Perfect for maintaining clear water in small aquariums up to 4 gallons, suitable for fish and turtle tanks.

Praised for Quiet Operation
Customers appreciate its quiet operation, making it suitable for use in bedrooms or offices without disturbing the peace.
Key specs
- Flow Rate:27 GPH
- Tank Size:4 gallon aquariums
- Filtration:Two filters in one
- Power Source:Internal pump
- Dimensions:3 x 3 x 7.38 inches
8.9

Very Good

Our Rating

8.9
Simple to use

8.4
Simple to clean

8.2
Noise level
7

Tetra
Tetra 3 Gallon Small Fish Tank, Aquarium Starter Kit, with Filter, Air pump, & Color Changing Light, Half Moon shape, for Gold Fish & Betta

18% Off
Main highlights

Aquarium Kit Features
Half-moon shape for 180-degree panoramic viewing, includes Tetra Whisper Internal Power Filter, air pump, clear canopy with feeding hole, and 3-gallon size.

Ideal Use Cases
Perfect for beginners, small spaces, and housing betta fish, guppies, or small aquatic pets with minimal maintenance.

Praised Feature
Users appreciate the unique shape and the adjustable air pump and filter, making it easy to maintain and visually appealing.
8.8

Very Good

Our Rating

9.5
worth the money

8.7
Easy to build

8.0
Simple to clean
8

SWIMSYNC

Fish Tank Aquarium 3 Gallon, Smart Aquarium Kits - Silent Water Pump,Self Cleaning System,7 Color Lights,Temperature Display, Aromatherapy, Advanced Filtration

25% Off
8.5

Good

Our Rating
9

Bluecoco

Bluecoco 4 Gallon Glass Aquarium Starter Kit with Flip-Top Feeding Port for Betta Fish: Crystal Clear 360° Viewing, Eco-Cycle Filtration, Air Pump, and LED Lighting

16% Off
8.4

Good

Our Rating

9.5
Noise level

8.2
for starters

9 Best 4 gallon fish tanks of 2025

1

biOrb Classic 15 Acrylic 4-Gallon Aquarium with White LED Lights Modern Compact Tank for Tabletop or Desktop Display, Black-Trimmed Tank

9.9

9.3

8.9

How do we rank?

How do we rank?

Analyzing top stores

2

Marineland Portrait Glass LED Aquarium Kit, 5 Gallons, Hidden Filtration,Black

8.9

8.9

8.9

3

4 Gallon Betta Fish Tank,Small Fish Tank with Filter and LED Plant Light and Filter System, Betta Shrimp Guppy Jellyfish Starter Kit Self Cleaning Glass Aquarium

4

Craftsboys Fish Tank, 4 Gallon Nano-Aquarium, Upgrade Filter System and LED Light, for Freshwater & Marine, Filter Balls Included (4 Gal)

5

fishkeeper 4 Gallon Fish Tank Starter Kit, Small Aquarium with Filter and Adjustable 3 Color Lighting Self Cleaning Fish Bowl Rimless Aquarium for Beginners (Freshwater Fish Tank)

6

Tetra Whisper 4i Internal Power Filter, Filtration for Aquariums Between 1 and 4 Gallons

8.9

8.4

8.2

7

Tetra 3 Gallon Small Fish Tank, Aquarium Starter Kit, with Filter, Air pump, & Color Changing Light, Half Moon shape, for Gold Fish & Betta

9.5

8.7

8.0

8

Fish Tank Aquarium 3 Gallon, Smart Aquarium Kits - Silent Water Pump,Self Cleaning System,7 Color Lights,Temperature Display, Aromatherapy, Advanced Filtration

9

Bluecoco 4 Gallon Glass Aquarium Starter Kit with Flip-Top Feeding Port for Betta Fish: Crystal Clear 360° Viewing, Eco-Cycle Filtration, Air Pump, and LED Lighting

9.5

8.2

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