Ultum Nature Systems Rimless Shallow Glass Aquarium Tank

UNS Rimless Shallow Glass Aquarium Tank - Glass Aqua

$29.99 USD

Size

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

IMPORTANT: If your order arrives damaged, please take photos and contact us right away—we’re here to help. For full details on returns, exchanges, and other important information, please visit our FAQ.

Ultum Nature Systems shallow aquariums offer a low-profile design that naturally shifts perspective and encourages a stronger focus on hardscape composition. Their reduced height allows more light to reach the substrate more directly, highlighting aquatic plant detail, hardscape texture, and negative space within the aquascape.

This open format is especially well-suited for iwagumi layouts and indoor, pond-inspired designs that combine emersed plant growth with submerged life below. With a range of sizes available, compact models fit beautifully on desktops, nightstands, or console tables, while larger sizes offer a unique way to introduce a more design-driven nature aquarium into any space.

Shallow aquariums can support a variety of aquatic life, but they are often chosen for setups where aquascaping and plant growth take the spotlight. Their open layout makes them great for top-down viewing, offering a different way to experience and keep a planted aquarium.

Like all UNS aquariums, each tank is crafted with ultra-clear low iron glass and clean, minimalist lines, offering a refined foundation for your next freshwater planted or saltwater reef aquarium.

Shown in the video below is an Ultum Nature Systems 60S shallow rimless tank:

Tank Features
Original 45° mitered edges for a seamless, high-end finish
Low iron glass with 91% clarity diamant glass
High-quality German silicone for long-term durability
Open layout for top-down viewing experience
Available in multiple sizes from 0.5 to 47 gallons

Includes: Black Leveling Mat

Tank Size Guide


Model	Dimensions (IN) W x D x H	Glass Thickness (MM)	Volume (GAL)
16S	6.29 x 6.29 x 3.14	5	0.5
5S	14.17 x 8.66 x 4.72	5	2.5
25S	9.84 x 9.84 x 5.11	5	2.1
45S	17.71 x 11.02 x 7.08	5	5.9
60S	23.62 x 14.17 x 7.08	6	10.2
60CS	23.62 x 23.62 x 11.81	10	28.5
75S	29.52 x 17.71 x 11.81	8	26.7
90S	35.43 x 22.04 x 14.17	10	47.9
90SS	35.43 x 22.04 x 9.84	10	33.3
120S	47.24 x 23.62 x 14.17	12	68.4
120SS	47.24 x 23.62 x 9.84	12	47.6

Scapelight: The Art of Shallow

Shallow aquariums offer a low-profile height and open canvas, perfect for creative ideas and scaping experiments. From nature-style layouts and Iwagumi scapes to hybrid paludarium builds or mini indoor ponds, they’re perfect for growing every aquatic plant under the sun and testing your luck with different design styles. With multiple sizes in the lineup, there’s a size for everyone and they’re wildly versatile! To show this, we’re going to highlight three aquascapes we’ve done in shallow tanks. Each one contains a different aquarium plant roster, hardscape choice and final look —all within the same shallow format. Let's get into it!

Ultum Nature Systems UNS 5N Shallow Rimless Glass Aquarium Tank Paludarium Aquascape

UNS 5S

2.5 GALLONS

A Carnivorous Plant Display

First up, let’s talk about our 2.5 gallon Ultum Nature Systems 5S aquarium. This tank is small and fit perfectly on top of many pieces of common furniture. (Think a console table or tv stand) We wanted something that would be low-maintenance without sacrificing aesthetic. We picked a handful of carnivorous plants, like Utricularia graminifolia (UG) and Drosera rotundifolia, and grew them using the Dry Start Method (DSM). This build let us experience growing plants we weren’t privy to prior and let us observe how these plants use their mucilage (sticky tentacles) to catch and consume small prey! With the help of a UNS Atomizer, we successfully kept a compact and unique planted setup that supported various types of plants.

Tank Dimensions: 14.17 x 8.66 x 4.72”
Plants Used: Utricularia Graminifolia, Drosera Rotundifolia, Mini Christmas Moss
Hardscape: Pacific Driftwood
Substrate: UNS Controsoil

Ultum Nature Systems UNS 5N Shallow Rimless Glass Aquarium Tank Paludarium Hardscape

Freshly planted tank

Compact size is ideal for small spaces

Close up of Drosera carnivorous plant species

utricularia graminifolia UG aquatic foreground plant for planted aquariums

A full Utricularia graminifolia carpet

Low-maintenance, no water changes

Learn more

UNS 60S

10.2 GALLONS

Low-Profile Iwagumi Layout

Moving up in size, we have one of our most viral tanks AND most popular choices—the UNS 60S 10-gallon shallow rimless aquarium. For this setup, we created a classic Iwagumi layout with Icelandic Lava Rock. We used two substrate types and completed the look with miniature aquatic plants. Doing this helped make the scape appear much larger than it was IRL. This particular aquascape is one of our favorites and you guys loved it too!

Tank Dimensions: 23.62 x 14.17 x 7.08”
Plants Used: Hemianthus Callitrichoides ‘Cuba’, Microcarpaea Minima Merrill, Mini Pellia
Hardscape: Icelandic Lava Stone
Substrate: UNS Controsoil, Fine Natural Sand

Ultum Nature Systems UNS 75S Shallow Rimless Glass Aquarium Tank Paludarium Aquascape

First week after setup

A school of bright orange Ember Tetras

Overgrowth of Hemianthus Callitrichoides 'Cuba' and aquarium mosses

Compact enough for console tables

hemianthus callitrichoides cuba hc aquatic foreground plant

Emergent Hemianthus Callitrichoides 'Cuba' growth fueled by natural light

Learn more

UNS 75S

26 GALLONS

Hybrid Planted Paludarium

Our final and largest shallow rimless aquarium is one of our newest creations. We spent a lot of time repositioning the driftwood to ensure the structure would be fit for supporting a variety of emersed plants. Below the waterline, our intention was to keep it simple and chose a mix of aquarium epiphytes and cryptocoryne plants that would grow well in lower lighting conditions given our top heavy design. Housed in the Ultum Nature Systems 75S, this is one of the largest models in the shallow series, holding roughly 27 gallons. This hybrid design blends traditional aquascaping with terrestrial growth, combining elements of different (but similar) hobbies together.

Tank Dimensions: 29.52 x 17.71 x 11.81”
Plants Used: Bolbitis Difformis ‘Mini’, Assorted Anubias, Homalomena, Cryptocoryne, Trichomanes Javanicum, Selaginella Erythropus ‘Red’
Hardscape: Malaysian Driftwood, Ancient Stone
Substrate: Aquario Neo Soil, UNS Controsand (Monterey)

An aquascape layout with a heavy impression

Mixture of Malaysian Driftwood and Ancient Stone hardscape

First 1-2 months

Paludarium emergent aquatic plants for planted tanks

Overview of terrestrial plant selection

Matured aquarium with flowing roots below

Learn more

Remember, we've shared three examples that only scratch the surface of what’s possible with a shallow aquarium. Whether you enjoy minimalistic aquarium design or dramatic, heavy hardscape work, there’s endless room for your creative juice to flow. Stick with the classics or challenge the boundaries of traditional aquascaping, the choice is yours!

Overall rating: 4.950893 / 5 from 224 reviews.

AI Generated Review Summary

UNS Rimless Shallow Glass Aquarium Tank offers pristine clarity with 91% clarity Diamant glass and 45° mitered edges. Customers praise its seamless look, perfect size for scaping, and outstanding quality. Fast shipping and secure packaging are also highlighted.

Summary topics

Glass Clarity: 17%
Edge Quality: 7%
Product Appearance: 14%
Tank Size: 5%
Product Quality: 19%

Review topics: ["size","support","color","issues","quality","light","shipping","feels","customer service","edges","looks","service","design","shape","packaging","price","construction","glass","dimensions","work","corners","speed","tank","aquarium","clarity","seams","lines","lid","plants","experience"].

Review highlights

"Great quality tanks at a great value, low-iron glass, perfect silicone seams, mitered edges." — Jonathan S.
"Excellent purchase, love the clear low iron glass, and the 45 degree smooth finish edges." — Zak K.
"Excellent quality, crystal clear glass, beautiful perfect seams and the size is perfect for a betta." — TUONG N.

Reviews

Comfortable prices and shipping! Great selection of plants! List goes on…

"Hi! My name is Pablo I live in NY I recently got into the fish keeping hobby I mostly do bettas. I got my third betta may 18 of this year 2026. I came across glass aqua after trying to find a couple of plants for my 3 gallon UNS long tank that I also purchased from Glass aqua. I was originally looking at Bruce plants but no hate to them most of their collection is out of stock and I find more of a variety on glass aqua other than Bruce plants. I mean, I’m talking about soils, an extremely great selection of plants especially for beginners like me. My shipment is also fast which I extremely love since I am an impatient guy. For something to be shipped to California and arrive to your door across the United States in NY in less than a week. That’s extremely impressive! I am most likely to recommend glass aqua to others and I’m definitely coming back."

— Pablo M. (5/5)

UNS tanks are the best

"UNS tanks are the best, glass is great, sizes are always great, never had a leak (I have 3 of them, all different sizes), & glass aqua has the fastest shipping for the UNS brand tanks which are already fairly hard to find."

— Kelsie F. (5/5)

Sleek, high quality tank with great clarity

"I’m really impressed with this UNS rimless tall glass aquarium. The glass clarity is excellent—super clean, no distortion, and really makes everything inside pop. The rimless design gives it a modern, minimalist look that fits perfectly in any space. The build quality feels solid, with clean silicone work and sturdy construction. I especially like the tall profile—it’s great for aquascaping and creating depth. Only thing to keep in mind is that because it’s rimless, you’ll want to be careful during setup and maintenance, but that’s expected with this style of tank. Overall, definitely worth it if you’re looking for a clean, high-end aquarium."

— Teagan R. (5/5)

Clearest glass have had great

"Clearest glass have had great tanks and stickers peel right off without leaving residue or needing cleaning"

— Christopher P. (5/5)

Beautiful aquarium. Love the chamfered

"Beautiful aquarium. Love the chamfered edges (or mitered cut, as they call it). Only thing is that it came with some small scratches, but nothing I’d fuss too much about. Then i noticed a few more scratches. I have been dry-scraping to see what look I want, so I’m sure I do it, but I’ve been very careful and I’ve done this with several tanks in the past that didn’t scratch as easily. Maybe its the ultra-clear glass is more prone to scratch, I dunno."

— Antonio R. (4/5)

"Arrived quickly and in good shape. A very nice looking and well constructed tank so far"

— Sara (5/5)

"Tank is well made, it was well packed."

— Lacey (5/5)

Beautiful Tank

"Beautiful, minimalist, simple tank. Looks fantastic in the formerly unused corner of my kitchen counter. Will make a great planted shrimp tank. Very happy with purchase."

— Colin W. (5/5)

Great tank

"I was hesitant on ordering a glass aquarium online, but based on reviews, I decided to go for it. It turned out great! Tank was double boxed and protected by FedEx’s improper handling."

— Chris N. (5/5)

"Excellent tank and delivery. I was nervous about transport and quality of the sealing, neither of which were an issue. Reslly enjoying this beauty."

— andres (5/5)

Q&A

Do you any of your tanks come up with a top? I’m looking at the 75S tank.: Hello and thanks for your interest! Quite a few of our tanks can support lids, you can find all our rimless aquarium tank lids here: https://shop.glassaqua.com/collections/all/glass-lid
I have a small 3-4 inch filter I’d like to add onto the tank, would that be a little too big or bulky for the 5S tank? If not would a Nano canister filter with standard lily pipes and outflow pipes work? I’m trying to achieve a minimal look. Thanks!: I am using a canister filter with nano-sized lily pipes. Seems to be working great so far and tank has been running almost 6 months. Standard lily pipes won’t work. Definitely get the nano-sized ones.

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.