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Waterbox 20 Cube - Starphire Glass 20 Gallon Aquarium


Starting at $23/mo with . Learn more

Item #: 0W5149

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Perfectly clear. Extremely simple.

Waterbox has created the ultimate rimless cube system constructed from Starphire Ultra-Clear™ glass with carefully beveled edges to provide the most visually appealing Cube aquarium on the planet.


  • Diamond beveled and perfectly clear - Waterbox uses Starphire Ultra-Clear™ on all panels of the Cube aquariums. This unique glass offers unmatched levels of brightness, color fidelity, clarity and visual excitement.
  • Simplified filtration with glass overflow system - Our Waterbox Cube overflow system keeps the environment completely silent while allowing the user to incorporate their favorite mechanical filtration media.
  • Leveled and stabilize -  Each Waterbox Cube system includes a self leveling mat which keeps the aquarium level on uneven surfaces and keeps surface tension on the glass down to a minimum which increases the longevity of your aquarium.
  • Great flow - The return nozzle creates spectacular flow through the water column of the AIO system, providing a better turnover rate, thereby increasing the overall health of the system.
  • Adjustable and flexible return pump - The Cube Series aquariums include a perfectly rated return pump that can be tuned to suit your tanks needs. (Included only in the USA)
  • Unique Baffle System - The baffle system forces water through a micron sock, and then the filtration media, while eliminating air bubbles in the system.
  • Proven filtration - All Waterbox Cubes include bio-balls, activated carbon, and sponge to help keep your water clear .

Need a Stand? The Waterbox Cube 20 has a compatible cabinet stand available in two color options: White or Black


Waterbox Model

Cube 10 AIO Aquarium

Cube 20 AIO Aquarium

Starphire Ultra-Clear™ Glass
Glass thickness 1/5" (5mm) 1/4" (6mm)
Full Black Glass Overflow
Directional Flow Nozzle
Tank Dimensions (inches) 13.8"L x 14.2"W x 13.8"H 17.7"L x 17.7"W x 15.8"H
System Volume 10.9 gallons 20 gallons
Removable Filter Sock 2.75" x 1 2.75" x 1
Filtration Media Included
Return Pump Included
Leveling Mat Included
Optional Cabinet in Black or White
Filter Sock Chamber Dimensions 3.14" L x 3.14" W x 13.6" H 3.14" L x 3.14" W x 15.57" H
Middle Filter Chamber Dimensions 5.5" L x 3.14" W x 13.6" H 8.26" L x 3.14" W x 15.57" H
Return Pump Section 3.14" L x 3.14" W x 13.6" H 4.25" L x 3.14" W x 15.57" H


Manufacturer information

Waterbox Aquariums was founded on 3 core principles. Build the highest quality Ultra Clear Glass Aquariums, Make them available to any hobbyist, Entry level to Professional and provide a vessel to grow the Aquatic Industry World Wide one new aquarium at a time.

Waterbox Aquariums are designed for simplicity and style, while allowing the consumer a way to constantly evolve and modify their Aquatic Environments to their liking. They believe that people want to work with technology they love.

"In its simplest form every Waterbox is the same, but when the consumer brings it to life, there are none alike."

5 Stars


Reviewed on
November 18, 2020

Yes, I would recommend this.

Love it

Pros: Padded bottom

This is not your ordinary glass aquarium. Worth what i paid for.

Was this review helpful? 1 0


Reviewed on
September 23, 2020

Yes, I would recommend this.

Simply Stunning

Pros: Simple to setup, everything you need to get up and running, beautiful design, crystal clear glass

Cons: None!

This tank is everything I wanted and more! The glass is crystal clear, the design of the AIO system is well laid out and super simple to setup. I’m not sure why some people complain about the noise from the stock pump it comes with, mine runs super quiet and produces plenty of flow. The only noise coming from my tank is from the skimmer I added. If you’re looking for a small footprint tank this one to me is by far the best!

Was this review helpful? 3 0


Reviewed on
June 03, 2020

Yes, I would recommend this.

great tank

Pros: great tank, well made

Cons: none

recently bought this tank for my little brother to get him in the hobby. this tank is well made tank that is built to last!

Was this review helpful? 0 1


Reviewed on
May 28, 2020

Yes, I would recommend this.

Beautiful Tank

This tank is sold out everywhere for a reason. The wait is worth it because this is a beautiful tank.

Was this review helpful? 0 1


Reviewed on
May 04, 2020

Yes, I would recommend this.

J Nano

looks awesome, tank size and appearance is everything I was looking for

Was this review helpful? 0 1


Reviewed on
April 16, 2020

Yes, I would recommend this.

Beautiful Tank

Pros: Cost

Cons: None.

Super clear glass, great size and price for a beginner.

Was this review helpful? 0 1


Reviewed on
April 16, 2020

Yes, I would recommend this.

Great Value!

Pros: Love the built in overflow and filtration area

Cons: The filtration area on the back is pretty tight.

This tank is well made and super easy to set up.

Was this review helpful? 6 0


Reviewed on
October 26, 2019

Yes, I would recommend this.

Beautiful tank

Pros: Glass is super clear

Cons: Back part is a lil tight

Tank came in the mail not a scratch on it. Tank looks amazing couldn’t be happier. I was able to fit my mini skimmer in the back with a few modifications and that was a plus.

Was this review helpful? 11 0

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