UNS Rimless Long Glass Aquarium Tank

$99.99 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.

UNS rimless aquariums offer pristine clarity for the planted aquarium, marine tank or coral reef!
Click here to shop all rimless aquariums!

Taking a modern and minimalist approach, these rimless tanks Ultum Nature Systems are crafted with precision from 91% clarity Diamant glass and high-grade German silicone glue. Special care is taken to blend the panels of glass seamlessly with 45° mitered edges resulting in beautiful aesthetic and unlimited room for depth and creativity – an aquascaper’s dream.

Shown below is the Ultum Nature Systems 90L long aquarium followed by the 45L long rimless tank:

Ultum Nature Systems Rimless Long Glass Aquarium Tank

Shown in the video below is an Ultum Nature Systems 90L long rimless tank:

Long rimless aquariums offer expansive panoramic views and ample horizontal space, making them perfect for extended aquascape designs. Their elongated structure encourages creativity and innovation in layout. Great for nano schooling tropical fish like Tetras and Rasboras, long tanks provide the generous swimming space that allows these creatures to school and/or shoal. Like other aquariums in the UNS lineup, each long tank features a clean, sleek design, offering a unique way to bring a nature aquarium into any space.

Features:
45° Mitered Edges
91% Clarity with Diamant Glass
High-Quality German Silicon
Sizes from 6 gallons to 21 gallons
Provide generous amount of horizontal space for wide panoramic views
Ideal for Nano schooling fish such as Tetras and Rasboras or Betta Fish sorority

Includes: Black Leveling Mat

Tank Size Guide


Model	Dimensions (IN) W x D x H	Glass Thickness (MM)	Volume (GAL)
45L	17.72 x 6.69 x 6.69	5	3.4
60L	23.62 x 7.87 x 7.87	5	6.3
90B	35.43 x 7.87 x 9.84	6	11.8
90L	35.43 x 11.81 x 11.81	8	21.3

Scapelight: Long Lines

Love a panoramic aquascape? A long rimless tank might be the one for you. From iwagumi layouts to driftwood-heavy designs and biotope-inspired ecosystems, the long tank format can support them all. Sometimes called a bookshelf aquarium, its slim, extended profile provides space for your scape and for fish that love to swim, shoal, or sift—such as tetras, rasboras, pygmy cories, danios, and more. Some of our personal favorite planted tank aquascapes were made in this tank style. Let’s get into it!

UNS 90L

21.3 GALLONS

At the River’s Edge

We’d be remiss not to start with our river-style Iwagumi planted tank. This aquascape found its home in an Ultum Nature Systems 90L 20-gallon long tank. This aquarium size and scape remains one of our favorites to date. The layout featured large, smooth Hakkai Stone arranged with intention and planted with a variety of grass-like aquatic plants. The result was a river-inspired nature aquarium that didn’t require an entire room to fit or make an impression (our opinions, of course).

Tank Dimensions: 35.43 x 11.81 x 11.81”
Plants Used: Cryptocoryne Parva, Echinodorus (Helanthium) Tenellus, Eleocharis sp. ‘Pusilla’, Isoetes Japonica, Eriocaulon sp., Taxiphyllum sp.
Hardscape: Hakkai Stone
Substrate: UNS Controsoil, UNS Controsand, Accent Gravel

Ultum Nature Systems UNS 90L 20 gallon Long Rimless Glass Aquarium Tank Iwagumi Aquascape

A full Iwagumi aquascape with Hakkai Stone only

Peacock Moss tied to small Seiryu Stones to prevent soil overspill

The aquarium was initially started as a bare bottom tank to avoid algae growth on sand

Plants grown out after 3 months with sand added

The final look of the this aquascape with extra gravel details and the moss replaced with Cryptocoryne Parva

Learn More

UNS 90L

21.3 GALLONS

The Bloom of Spring

Ultum Nature Systems aquariums are built to last, and we certainly use them. After reluctantly breaking down our Iwagumi, we traveled to the other side of the spectrum. This time, a full driftwood hardscape layout took form. Without any stones, even for support, we went for a nature-style planted tank planted with colorful aquarium stem plants and foreground carpet plant. We used the same exact tank that supported our Iwagumi scape for so long. The quality of UNS tanks is paramount! With proper care, they become enduring canvases for your creativity.

Tank Dimensions: 35.43 x 11.81 x 11.81”
Plants Used: Ludwigia sp., Rotala sp., Utricularia Graminifolia, Glossostigma Elatinoides, Bacopa sp. Salzmannii Purple, Anubias Jungle Star, Hygrophila sp., Limnophila sp., Hydrocotyle Tripartia, Myriophyllum sp.
Hardscape: Malaysian Driftwood
Substrate: Aquario Neo Soil

Ultum Nature Systems UNS 90L 20 gallon Long Rimless Glass Aquarium Tank Nature Aquarium Aquascape

A Malaysian Driftwood only aquascape (Ryuboku)

The naturally swooping lines add "height" to the lower profile long aquarium

Right after planting

1 month after planting with a colorful mix of Rotala and Ludwigia species

We love the way Rotala naturally creeps over the wood to provide a vibrant drape of contrasting toness

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Utricularia Graminifolia growing in a nano iwagumi aquascape featuring Hakkai stone.

UNS 45L

3.4 GALLONS

A Moment at the Forest’s Pond

A nano aquascape. Housed in the Ultum Nature Systems 45L, this 3.4-gallon nano long tank sat on top of a kitchen dining room table. People put plants there right? A beauty of nano tanks is the ability to set them up literally anywhere, as long as you’ve got the space and a plug. Many meals were had at this table with a planted tank for added ambience in the background. 10/10 recommend trying it out.

Tank Dimensions: 17.72 x 6.69 x 6.69”
Plants Used: Utricularia Graminifolia
Hardscape: Hakkai Stone
Substrate: Aquario Neo Soil

Ultum Nature Systems UNS 45L Long Rimless Glass Aquarium Tank Iwagumi Aquascape

A rock-heavy hardscape

This was a simple 1 plant Iwagumi aquascape

Utricularia Graminifolia planted densely

It is known to be a challenging aquatic and carnivorous plant. We decided to give it a try anyway and flooded the aquarium immediately.

After 1 month the tank was maturing

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Don’t let the lack of depth deter you from trying a long aquarium. The extended layout opens the door to bold design for your hardscape and comfortable space for your aquarium livestock. What will you create in a long rimless tank?

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.