Description
Mantis Rubicon Aquarium 4.a – 75l — Larger all-in-one Starfire glass nano reef tank
Stepping up from a nano cube usually means re-sourcing a new overflow, a bigger pump and new plumbing all at once, which is the jump an all-in-one tank in a larger size is built to remove. Mantis Rubicon Aquarium 4.a – 75l (SKU: MA069901) is the larger model in the Mantis Rubicon series, built in Starfire glass for a clearer, less green-tinted view than standard float glass, at a 75 L capacity that gives more room for aquascaping and a bigger coral or fish stocking list than the smaller 40 L model. It is aimed at the same easy-to-maintain, all-in-one approach as the rest of the range, just scaled up for a display that has outgrown a true nano.
The 75 L Rubicon ships with a glass overflow panel built into the tank, a circulation pump, the plumbing to connect the display to its filtration chamber, and a filter sock for mechanical filtration, so the core components of a working reef system come in the one box rather than being sourced separately. The overflow panel routes water to a filtration area out of sight of the main display, keeping the front glass clear, while the included pump returns filtered water to complete the circuit. At 75 L there is more water volume to buffer swings in temperature and water chemistry than in the 40 L model, which can make the larger tank a steadier system to run day to day. A smaller 40 L Rubicon 2.a (SKU: MA069900) is built on the same principle for a more compact display.
Usage & Application
When to Use
- Stepping up from a nano cube: More water volume and aquascaping room than a 40 L tank.
- Reef and mixed livestock displays: A capacity that supports a broader stocking list than a true nano.
- First sump system at a larger scale: Included overflow, pump and plumbing for a buyer moving up from a basic set-up.
- Clearer front-glass viewing: Starfire glass for less green tint than standard float glass.
Installation & Setup Guide
- Position the tank: Set it on a stand rated for its filled weight, levelled before adding water.
- Connect the plumbing: Fit the included plumbing between the display and the filtration chamber below the overflow.
- Fit the pump: Install the circulation pump to return filtered water to the main display.
- Load the filter sock: Fit the supplied filter sock before running water through for the first time.
Product Specifications & Highlights
Key Features
- Starfire glass construction: A clearer viewing pane than standard float glass.
- Larger 75 L capacity: More aquascaping room and water volume than the 40 L model.
- Built-in overflow panel: Drains to the filtration chamber while keeping the display free of visible equipment.
- Circulation pump and plumbing included: The return circuit is supplied rather than sourced separately.
- Filter sock included: Mechanical filtration ready to run from day one.
Product Details
- Brand: Mantis
- SKU: MA069901
- Product Type: Saltwater Aquarium > All-in-One Nano Aquarium Kit
- Capacity: 75 L
- Glass Type: Starfire glass
- Included: Glass overflow panel, circulation pump, plumbing, filter sock
- Other Sizes: Rubicon Aquarium 2.a – 40l (SKU: MA069900)
- Target Environment: Marine (reef) aquariums


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