The Best 20 Gallon Desktop Aquarium


Nowadays, there are so many products of 20 gallon desktop aquarium in the market and you are wondering to choose a best one.You have searched for 20 gallon desktop aquarium in many merchants, compared about products prices & reviews before deciding to buy them.

You are in RIGHT PLACE.

Here are some of best sellings 20 gallon desktop aquarium which we would like to recommend with high customer review ratings to guide you on quality & popularity of each items.

989 reviews analysed
Product Name

1. Fluval Sea Evo Saltwater Fish Tank Aquarium Kit

Fluval Sea Evo Saltwater Fish Tank Aquarium Kit



Size:5 gallon

Do not let its size fool you, the Fluval Sea EVO Fish Aquarium packs the same performance features as a tank several times its size but is small enough to fit on any desk or countertop. A super bright 11000 K LED aquarium light provides optimal conditions for healthy coral growth, color, and conditioning, while powerful 3 stage water filtration with oversized media delivers amazing water quality. Now you can finally enjoy the saltwater fish tank hobby for less money, less effort and less space required! Go ahead and grow your mini reef tank with confidence and creativity. Endless possibilities await. For more fish tank accessories check out the other Fluval Sea products including aquarium filters, filter media, aquarium heaters, aquarium air pumps, aquarium lights, aquarium thermometer, fish food, aquarium gravel, fish tank decorations and aquarium stands. Fluval has a wide variety of products that are perfect for your pet fish to enjoy in any large fish tank, small fish tank, freshwater tank or in a saltwater tank. This Fluval aquarium is perfect to pair with the Fluval Submersible Heater or the Fluval Sea Protein Skimmer to help maintain a stable temperature and remove waste so your fish aquarium stays clean (all sold separately). If you are looking for a larger fish tank the Fluval Evo Aquarium model is also available as a 13.5-gallon fish tank, Fluval Sea Evo Aquarium Kit – 13.5 US Gal (52 L) – Black (sold separately).

2. Lifegard Aquatics Crystal Aquarium

Lifegard Aquatics Crystal Aquarium



Size:9.98 Gallons

With Lifeguard Aquatics crystal aquariums you will enjoy the natural and True colors of your fish and aqua cape.  the crystal tanks are made of ultra-low iron glass which allows the Viewer an undisturbed viewing of their underwater masterpiece. It is the latest technology in ultra Clear 45° edge rimless tanks with invisible glue joints. Available in three models and several sizes.

3. Tetra Crescent Acrylic Aquarium Kit, Energy Efficient LEDs

Tetra Crescent Acrylic Aquarium Kit, Energy Efficient LEDs


4. Marina LED Aquarium Kit

Marina LED Aquarium Kit


5. biOrb Flow 30 Aquarium with LED

biOrb Flow 30 Aquarium with LED


6. Aqueon Quietflow E Internal Power Filter

Aqueon Quietflow E Internal Power Filter



Size:20 Gallon

Economical, efficient and easy to use describe this internal power filter. For use with frameless or framed aquariums. Easy to position with suction cups or clips to attach and hang on the aquarium rim. The filters provide chemical, biological and mechanical filtration. Includes: Carbon Cartridge – chemical filtration (odors and discoloration); Bioholster – biological filtration (toxic ammonia and nitrites); Course Media Sponge – mechanical filtration (particles and debris).

7. Penn Plax Vertex Desktop Aquarium Kit

Penn Plax Vertex Desktop Aquarium Kit



Size:5 Gallon

Water-World presents the VERTEX Desktop Aquarium Kit by Penn-Plax.
This kit is great for any beginner, or for those looking for an all-in-one solution.
Moreover, it is truly perfect for small or unused spaces:
a desk, dresser, or even on top of the old file cabinet that hasn’t been touched in years.
Designed for bedrooms, offices, and classrooms in mind.

Unique Design:
The frameless tank is made from finely constructed bent glass that’s 1/8” thick.
At the front, it features 2 curved corners, allowing for unobstructed views from all angles.
Additionally, the kit provides a translucent hinge-style lid.

Great For Beginners:
The VERTEX Desktop 5 Gallon Tank Kit makes for a simple and easy introduction to aquarium ownership.
Ideal for adults and children alike.

Contains Almost Everything You Need:
This kit includes
5 Gallon Glass Tank
Hinged Lid
Cascade 20 Power Hang-On Filter (20 GPH)
Therma-Temp Full-Range Digital Thermometer
and Quick-Net Fish Net.
Please Note: fish and decorations are sold separately.

5 Gallon Tank 12” (H) x 10.5” (W) x 9.75” (D).
All other components can fit comfortably inside the tank.
Great for shrimp and small fish!

8. GloFish Aquarium Kit Fish Tank with LED Lighting and Filtration Included

GloFish Aquarium Kit Fish Tank with LED Lighting and Filtration Included




GloFish aquarium kits, lighting and décor create an underwater fluorescent wonderland that appeals to all ages and levels of expertise. With our full range of vibrant accessories uniquely designed to work with GloFish LED lighting, you can transform any aquarium into a GloFish environment at the click of a switch. The GloFish 20 Gallon Aquarium Kit includes a 20 gallon glass aquarium, LED hood, Tetra Mini UL heater, Tetra Whisper 20 filter, GloFish 13″” LED light stick, 3 GloFish plants, GloFish yellow anemone, fish food and water conditioner sample and a set-up guide. Watch as your aquarium is transformed into an underwater wonderland filled with pops of brilliant color. See your GloFish and GloFish decor fluoresce in brilliance under the LED lighting, creating a focal point in any room. Show off your personality with decor and color that personalized for you in a fun and creative aquarium. Create a colorful mix of fish in this 20 gallon environment, giving them plenty of space to swim around.

9. SeaClear Acrylic Aquarium Junior Executive Kit

SeaClear Acrylic Aquarium Junior Executive Kit



Color:Cobalt Blue | Size:29 Gallon; 30″ L x 12″ W x 18″ High | Style:Rectangular Show

When quality determines the choice, the choice is clear: SeaClear. No one can match the quality of SeaClear’s virtually invisible seams, which are backed up by the industry’s most extensive warranty. For the discerning aquarist for whom nothing but the best will do, SeaClear can make even the most extreme aquatic dreams come true. Product Features: The SeaClear Executive Aquarium Kit is manufactured of Acrylic which is 17 times stronger than glass and weighs about half of the weight of a glass aquarium of the same size. Safe for freshwater and saltwater fish. Acrylic aquariums gives you exceptionally clear views of your fish, plants and landscaping. Just add gravel, water, and fish.

10. YOKOU Decorative Aquarium Background Poster Fish Tank Backdrop Static Cling Wallpaper Sticker, Undersea World

YOKOU Decorative Aquarium Background Poster Fish Tank Backdrop Static Cling Wallpaper Sticker, Undersea World



Size:23.6″x15.7″ | Color:Clear Sea Water White Sand Beach

Click YOKOU Storefront add vibrant colors and stunning themes to your aquarium

1.Enhances the aquarium’s natural beauty
2.May be trimmed to desired shape and size
3.Hides water stains
4.Cover the back of your Vivarium or Aquarium, with this high quality double sided background.
5. 3D HD picture with bright colors. Self adhesive, easy to paste. Durable materials. Picture smooth without wrinkles. Package Includes:1 Piece PVC Background Sticker


1.Please refer to the above picture for detailed usage
2.Since the size above is measured by hand, the size of the actual item could be slightly different from the size above.
3. Due to the lighting effects, monitor settings, etc. There could be someslight difference in the color tone of the pictures and the actual item.


By our suggestions above, we hope that you can found 20 Gallon Desktop Aquarium for you.Please don’t forget to share your experience by comment in this post. Thank you!

Home Previews
Enable registration in settings - general