Fiji Cube

81 Gallon External Overflow Rimless Aquarium Full Package

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81 Gallon External Overflow Rimless Aquarium Full Package (Black)

SKU: 250524

In stock


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81 Gallon External Overflow Rimless Aquarium Full Package (White)

SKU: 250523

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This item ships directly from Fiji Cube.

To create a living work of art, you need to start with the right aquarium.


External overflow aquariums have gained a lot of popularity thanks to the opportunities they create in customizing filtration setups and maximizing aquascaping space in the display. Fiji Cube shows real attention to detail in their aquariums, including features that any hobbyist can appreciate. They use extra thick low-iron glass for their aquariums, and bevel the edges for a clean, classy look. Fiji Cube's series of EXT aquariums feature an ultra low-profile external overflow design with a unique, removable wet side overflow box. The attractive and unique design of the Fiji Cube external overflow design really stands out for its ease of maintenance and minimal visual impact, leaving you free to create a beautiful aquascape.


The Fiji Cube aquarium "Full Package" offers the best aquarium solutions for any fish keeping hobbyists who want a pre-customized filtration system that suits their aquarium size. The full package includes a tank, matching stand (available in Black and White), sump, water reservoir, and plumbing fitting kit.



  • Ultra-clear low iron glass
  • Beveled edges
  • Black silicone
  • Rimless design
  • Rubber leveling mat
  • Removable black film on back glass
  • Low profile and slim overflow box design
  • Removable inner overflow box
  • Dual return jet kit included
  • Heavy-duty multi-layer plywood cabinet stand with leveling feet
  • Self-leveling mat included
  • Advanced Reef Sump System and Water Reservoir included
  • Imperial Grade (Schedule 80) Plumbing Fittings included


All Fiji EXT Plus tanks include a matched external overflow and return nozzle kit. The overflow box is full cast acrylic made with low profile design and quality in mind. For smaller EXT tank packages, the “Herbie” overflow design features efficient and quiet flow, as well as an emergency drain for added safety.  


The "Full Package" includes the Fiji Cube Advanced Reef Sump, which offers the best features in the saltwater reefing industry. All Fiji Cube advanced reef sumps come with interchangeable filter sock holder and floss box, providing extra versatility in mechanical filtration. The sumps are also equipped with a heater holder, probe holder, and dosing holder to prepare for the next level of reef keeping. The included polycarbonate sump lid is a must-have in today’s sump system to reduce noise, salt creep, and evaporation.


Unlike others who offer metric plumbing systems in the aquarium system, the Fiji Cube aquarium "Full Package" comes with a SCHEDULE 80 plumbing fitting kit (pipes are not included), allowing for easier plumbing modification.


Tank Specifications:

  • Total Volume: 81 Gallons
  • Dimensions: 35.43"L x 23.62"W x 22.44"H
  • Glass Thickness: 0.5" (12 mm)
  • Max Rec. Flow: 800 GPH
  • Drain Plumbing Size: 2x 1"
  • Return Jet Plumbing Size: 2x 3/4"
  • Return Bulkhead Size: 3/4"

Stand Specifications:

  • Number of Doors: 2
  • Height: 32.7"
  • Material: 18mm solid plywood

Sump Specifications:

  • Model: Fiji-20
  • Dimensions: 20" x 15" x 16"
  • Volume: 20.8G

Reservoir Specifications:

  • Dimensions: 6" x 15" x 16"
  • Volume: 6.6G


What's Included?

  • 1x Fiji Cube 81g Shallow EXT Rimless Glass Tank
  • 1x EOF-12 Overflow Box (1200 GPH)
  • 1x Fiji-20 Advanced Reef Sump
  • 1x 6.6G Water Reservoir
  • 2x Flexible Return Line Kits
  • 1x Cabinet Stand in White or Matte Black
  • 1x Schedudule 80 Plumbing Fitting Kit (PVC pipes not included)
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