Waterbox Aquariums

Cube 25 Peninsula Nano AIO Aquarium - Waterbox

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$329.99 $329.99

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Elegance and Performance in a Compact Size

  • Ultra-clear low-iron glass
  • Built-in All-In-One filtration system
    • 225 Micron filter sock included
    • Bio balls, carbon, and filter sponge media included
    • Appropriately sized return pump included
  • Adjustable return nozzle
  • High strength Wacker silicone seams
  • 90 degree joints for maximum durability and strength
  • Leveling mat included


The elegant craftmanship of Waterbox Aquariums starts with their use of 91% transmittance, diamond-beveled, ultra-clear low-iron glass which allow you to see your aquarium inhabitants with stunning clarity. Each glass panel is joined at 90 degrees using high-strength, German-made Wacker silicone to provide maximum durability and to ensure tank longevity.

The Waterbox CUBE series employs an All-In-One filtration system, which is perfect for small setups and those not wanting to fuss around with sumps and plumbing. The AIO filter compartment is broken down into three chambers with dual baffling, forcing dirty aquarium water through a filter sock and several types of filtration media (all included!) for purification. Filtered water then flows back into the main display tank via a return nozzle, which is easily adjustable to dial in water agitation to your liking. With the Waterbox CUBE AIO tanks, you don't have to worry about shopping around for an appropriately sized return pump, cutting up foam to make a leveling mat, or deciding on which filtration media to buy-- All necessary components have been provided, giving you the perfect canvas to build the nano tank of your dreams. 


System Specifications


  • Dimensions: 23.6"L x 15.7"W x 15.7"H
  • Glass Thickness: 6mm (1/4")
  • Water Height: 15.2"
  • Aquarium Volume: 23.7 Gallons
  • Aquarium Dry Weight: 47.4 lbs
  • Material: Ultra-Clear Glass
  • Transmittance: 91%

AIO Filtration Compartment 

  • Media/Skimmer Chamber: 6.8"L x 3.1"W x 15.7"H
  • Filter Sock Chamber: 3.1"L x 3.1"W x 15.7"H
  • Pump Chamber: 3.1"L x 4.6"W x 15.7"H


  • EVA Mat: x1
  • Directional Nozzle: x1
  • Return Hose: 16mm
  • Return Pump Flow: 264 GPH
  • Filter Sock: 1x 2.75" 225 Micron Felt
  • Activated Carbon: 250g
  • Filtration Sponge: x2
  • Bio Ball: x48



What's Included?

1x Waterbox Cube 25 Peninsula Nano AIO Aquarium

1x EVA Leveling Mat

1x 2.75" 225 Micron Felt Filter Sock

2x Filter Sponges

48x Bio Balls

1x 250g Activated Carbon

1x 264gph Return Pump

1x Φ16 Return Hose

1x Directional Return Nozzle




More Information
UPC 810039394434
Aquarium Size 20 - 30 Gallons
Aquarium Type All in One, Peninsula
Total Volume 23.7 gallons
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Product Questions

what size is the return nozzle? id like to get a random flow nozzle for it
Question by: taylor on Oct 5, 2023, 6:32 PM
Hey there,
Thank you for reaching out to us. The return nozzle size is 16mm. Please let me know if you need anything further.
Answer by: Thomas Wofle (BRS Staff) on Oct 25, 2023, 12:02 PM