The Fiji Cube 20 Gallon Peninsula Rimless AIO Glass Nano Tank is a high-end, all-in-one aquarium system specifically designed for peninsula-style viewing. Part of thePRO Series, this tank is built with superior craftsmanship and integrates a sophisticated filtration system, making it an ideal choice for advanced nano reef or planted setups. The peninsula format allows for stunning, three-sided views of your aquascape.
Key Design and Construction Features:
- Peninsula Layout:Designed to be viewed from the front and two sides, allowing the tank to be placed away from a wall for a dramatic, immersive display.
- Ultra-Clear Low Iron Glass:Constructed with ultra-clear, low-iron glass for maximum clarity, allowing true colors of corals and fish to shine without the green tint of standard glass.
- Rimless Design with Beveled Edge:Features a modern, aesthetically pleasing rimless design with elegantly beveled edges for a premium finish.
- Enhanced Glass Thickness:Built using a thicker grade of glass than many comparable models on the market, enhancing durability and structural integrity.
- Black Silicone:Utilizes black silicone for clean, crisp seams that complement the contemporary design.
- Leveling Mat Included:A rubber leveling mat is provided to protect the tank and ensure proper, level placement on your stand.
Integrated All-in-One (AIO) Filtration System:
The rear/side filtration compartment is cleverly concealed and provides a comprehensivethree-stage filtration systemfor optimal water quality:
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Mechanical Filtration (Stage 1):Features a dedicated chamber for filter sock mechanical filtration.
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One nylon filter sock is included. Both 200 micron felt and nylon filter socks are available for purchase separately.
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Chemical/Biological Filtration (Stage 2):Includes theFiji Cube Modular Media Basket, a versatile component that allows hobbyists to customize their chemical and biological media in separate tiers.
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Refugium/Skimmer Chamber (Center Chamber):Provides a generously sized compartment, perfect for housing essential equipment like a nano protein skimmer or cultivating beneficial macroalgae in a refugium for nutrient export.
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Return Chamber (Stage 3):This chamber houses the return pump.
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Top and Bottom Weir Design:An advanced dual-weir design ensures clean water is delivered from both the surface (removing bacterial film) and the bottom of the display section (removing settling debris).
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Direction Adjustable Return Nozzle:Allows the user to easily fine-tune and direct the water flow and circulation back into the main display area.
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Included Equipment:
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Fiji Flow 300DC Nano Pump:A high-quality DC return pump with an external digital flow controller. This controller offers adjustable flow rates and a convenientfeed modeto pause the pump during feeding.
| Specification | Detail |
| Tank Size | 20 Gallons (Nominal) |
| Design | Peninsula Rimless All-in-One (AIO) |
| Glass | Ultra-Clear Low Iron Glass, Beveled Edges |
| Filtration | Three-Stage Integrated Rear/Side Sump |
| Pump | Fiji Flow 300DC Nano Pump with Digital Controller |
| Included Accessories | Filter Sock Holder (w/ Nylon Filter Sock), Modular Media Basket, Leveling Rubber Mat, Plumbing, and Adjustable Nozzle |
| Silicone | Black |






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