UNS Rimless Nano Glass Aquarium Tank

$49.99 USD ~~$85.00 USD~~

Usually ships in 1-2 business days from our fulfillment center

IMPORTANT: Due to the nature of this product, minor imperfections or variations may be present direct from manufacturer and does not indicate defective or damaged product. If your tank arrives damaged, please take photos and contact us immediately.

Returns are subject to approval and must be new, unused and in original packaging. Damaged returns are subject to restocking fees.

Ultum Nature Systems nano aquariums are perfect for small-scale aquascapes. Crafted from high-clarity, low-iron glass, the UNS 3N and 5N are well-loved by aquascapers everywhere. Both tanks feature the beautiful craftsmanship UNS is known for, including 45° mitered edges, clean silicone, and unique dimensions that were uncommon prior to their release.

Nano tanks are ideal for a variety of reasons: they’re affordable, easy to maintain, fit in most spaces, and great for beginners starting their first planted tank. Their small size is budget-friendly, yet still large enough to create beautiful aquascapes that are just as impressive as larger setups. A nano aquarium typically refers to tanks under 10 gallons, but the term is subjective—some hobbyists may consider tanks up to 20–30 gallons depending on their aquascaping style. UNS nano tanks are a top-selling rimless aquarium!

Each UNS rimless tank includes a black nano-foam leveling mat for extra safety and stability.

Nano Tank Highlights:
- Perfect aquarium for desktops, nightstands, media consoles or any small space that needs a splash of nature.
- Wonderful choice for shrimp tanks. Add some live aquatic plants or moss, gentle filtration and simple hardscape for enrichment and hiding spots!
- 45° Mitered Edges, 91% Diamant Glass, High-Quality German Silicon

Tank Size Guide


Model	Dimensions (IN) W x D x H	Glass Thickness (MM)	Volume (GAL)
3N	12.20 x 7.48 x 7.48	5	2.9
5N	14.17 x 8.66 x 8.66	5	4.6

Ultum Nature Systems 5N rimless nano aquarium

Ultum Nature Systems 5N Nano Rimless Glass Aquarium Tank

Scapelight - Pocket Scapes

Small in size but huge in creative potential—nano aquariums are some of the most versatile and popular tank sizes in the aquascaping hobby. Their compact size makes them great for small spaces and if that isn’t a concern, the more the merrier! Don’t mistake their size for limitation. Nano tanks offer a unique opportunity to experiment with different aquascape layouts, aquatic plants, and combinations of each on a manageable scale.

Build Your Own Aquarium Kit - Nano Tank - Glass Aqua

UNS 5N

4.6 GALLONS

Nano Nature

We turned our first nano scape into a dining table series and this nature-style aquascape marked the third and final evolution! Situated in the Ultum Nature Systems 5N 4.6G rimless tank, we grew and kept a lot of the same aquatic plants. The most notable change was the swap of our main hardscape from Spider Wood to Pacific Driftwood, followed by an uproot of the original carpet. With a new Marsilea aquarium carpet and rearrangement of epiphytes, the final composition remained familiar but refreshing… just like nature!

Tank Dimensions: 14.17 x 8.66 x 8.66”
Plants Used: Staurogyne Repens, Ludwigia Natans, Marsilea sp., Anubias sp.
Hardscape: Pacific Driftwood
Substrate: Aquario Neo Soil

The Spider Wood Nano aquascape before this refresh

The Ludwigia Natans Super Red eventually grew too unruly and out of hand

We decided to rescape using similar plants in the same aquarium and soil

This is the perfect look for this planted tank in our opinion

Eventually it outgrew itself too!

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UNS 5N

4.6 GALLONS

Nano Peaks

Yama Mini is an Iwagumi aquascape housed in the same UNS 5N tank. We find that when we're working with large tanks for extended periods, coming back to a nano aquarium feels right. This layout utilized one of our favorite hardscape materials—Manten Stone. Trying to stack rocks in a small space and achieve a miniature mountain range rather than a "pile of rocks" requires more effort than one might think. We completed the look with simple plants for a “less is more” approach, because the scape itself required a chunk of creative mojo.

Tank Dimensions: 14.17 x 8.66 x 8.66”
Plants Used: Hemianthus Callitrichoides ‘Cuba’, Eleocharis Parvula ‘Mini’, Riccia Fluitans
Hardscape: Manten Stone
Substrate: Tropica Aquarium Soil

We usually plan out the hardscape layout first before adding substrate

Addind substrate will help elevate stones in Iwagumi aquascapes and add angles to them

Algae is to be expected during the first few weeks of setup

After a couple months of growth

The final manicured look of this nano planted aquarium

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Phyllanthus Fluitans Red Root Floater - Glass Aqua

UNS 3N

2.9 GALLONS

Nano Oasis

A tad smaller but still impactful, this easy Betta fish aquarium came to life in an Ultum Nature Systems 3N nano tank. The layout featured two mounds of Pacific Driftwood planted with a variety of live aquatic plants for enrichment and cover. Heavy plant mass also helped muffle the flow, creating gentler waters for our Betta. Although simple, there's something special about watching the different leaf textures intertwine and evolve naturally over time. We still get questions about this setup to this day!

Tank Dimensions: 12.20 x 7.48 x 7.48”
Plants Used: Phyllanthus Fluitans (Red Root Floaters), Hygrophila Pinnatifida, Mini Christmas Moss, Bolbitis Difformis ‘Mini’, Hydrocotyle Tripartita, Potamogeton Gayi, Echinodorus sp. Tenellus, Anubias sp., Bucephalandra sp.
Hardscape: Pacific Driftwood
Substrate: UNS Controsoil, Fine Natural Sand

The Pacific Wood Nano hardscape was zip tied together before hand to create this aquascape

Then we filled in all the hardscape gaps with aquatic rhizome plants like Bolbitis and Anubias species

Right after flooding the tank to be kept as a low maintenance Betta fish aquarium

We think he liked it :)

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Nano aquariums prove you don’t need a large tank to create something really cool. If you're new around here or a long-time scaper looking for your next setup, consider one of these. They're perfect for testing the waters—and they fit just about anywhere.

Shipping
Orders are typically processed within 1-2 business days M-F. However, additional time may be required during peak seasons and federal holidays. For orders containing live plants, we exercise extra caution and assess factors such as travel distance and weather to ensure safe transit.

To avoid delays, please ensure all order information is accurate and complete. We cannot offer refunds and are not responsible for orders shipped to incorrect addresses due to errors in provided information. Once an order has been shipped, delivery times are determined by the carrier and are outside of our control. On average, shipments arrive within 2–5 business days, excluding weekends and holidays. For more information, please visit our FAQ page.

Returns
If you are not satisfied with your purchase, please contact us within 48 hours of delivery. Approved returns must be shipped back within 14 days of approval. Returned items must be unused, unopened, and in their original packaging. Specific return requirements, if applicable, will be listed on the product’s page. For more information, please visit our FAQ page.

Refunds
No worries, we’ll take care of everything as long as it fits the guidelines above.Most answers to general questions can be found on our FAQ page.