The UNS 20TM 3.2 Gallon Prism Rimless Tank is a versatile multi-purpose glass enclosure designed to function as an aquarium, terrarium, or paludarium. It pairs a compact footprint with an elevated height, providing vertical scale for tall hardscape pillars, jungle-style stem plants, or emersed Wabi-Kusa layouts. This unit includes a flush inset glass lid to retain ambient humidity for moisture-loving tropical species.
| Feature | Specification |
|---|---|
| Model | UNS 20TM Prism Rimless |
| Dimensions (L x W x H) | 7.87" x 7.87" x 11.81" (20 x 20 x 30 cm) |
| Total Volume | 3.2 Gallons (12.0 Liters) |
| Glass Thickness | 5 mm |
| Glass Type | 91% Clarity Diamant Low-Iron Glass |
| Lid Construction | Mitered Flush-Inset Glass Lid with Center Gas Port |
| Seam Construction | 45° Precision Mitered Joints with German Silicone |
| Branding | Signature Laser-Etched Corner Logo |
The UNS Prism Series is available in three distinct vertical footprints:
1. How does the UNS Prism series differ from standard UNS aquariums?
The Prism series features an increased vertical profile and includes a flush-fitting, mitered inset glass lid. This design allows the tank to function seamlessly as an aquarium, high-humidity terrarium, or paludarium for tropical plants.
2. What setups are best suited for the UNS 20TM?
The 3.2-gallon volume and 11.81" height make the 20TM ideal for nano vertical aquascapes, terrestrial moss terrariums, and Wabi-Kusa displays.
3. Why is a leveling mat necessary for rimless glass enclosures?
Because rimless glass tanks rest directly on their base panel without a raised plastic frame, even a microscopic grain of sand on a stand can create concentrated stress points under weight. The included dense foam mat absorbs micro-vibrations and distributes weight evenly across the entire footprint to prevent glass stress cracks.
Overall rating: 4.5 / 5 from 4 reviews.
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"I love the tank and look, unfortunately the risk of having glass on glass with the lid is high. I’ve already accidentally dropped the lid and chipped both tank and lid. Just be extra mindful and careful when removing. Otherwise it’s good, bigger than I expected."
"The UNS 20TM is the perfect size for my Wabi Kusa project. It arrived well-packaged and in perfect condition—no scratches, chips, or cracks. My only minor gripe was the sticky residue left behind after removing the tape securing the lid, but overall, I’m very pleased with this tank!"
"Arrived well, no damage, what I’ve come to expect from UNS tanks, I’m testing out some terrarium ideas with these, the included lid is a nice touch"
"I bought this to set up a terrarium and it looks great"
