Ultum Nature Systems rimless long aquariums are perfect for aquarium hobbyists who want extended horizontal space and panoramic views of the aquascape within. Their elongated structure encourages creative aquascaping layouts that focus on flow, depth and movement across the length of the tank.
Great for planted aquariums with nano fish, long tanks provide generous swimming space for species like tetras and rasboras who have natural schooling or shoaling behavior. Their rectangular shape, subtly lowered panels and wide profiles provide a wonderful canvas for aquascaping with enough room for unique foreground, midground, and background planting choices.
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 below is the Ultum Nature Systems 90L long aquarium followed by the 45L long rimless tank:
Shown in the video below is an Ultum Nature Systems 90L long 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
Available in multiple sizes from 6 to 21 gallons
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 |
Overall rating: 4.941581 / 5 from 291 reviews.
The UNS Rimless Long Glass Aquarium Tank is praised for its pristine clarity, seamless 45° mitered edges, and high-quality German silicone. Customers appreciate its generous horizontal space, perfect size for aquascaping, and crystal clear glass. The fast shipping, secure packaging, and excellent customer service further enhance the overall positive experience.
Review topics: ["color","shipping","packaging","issues","quality","glass","looks","price","edges","size","dimensions","feels","customer service","construction","light","tank","corners","design","shape","aquarium","support","fit","speed","service","clarity","seams","lines","lid","plants","experience"].
"This is my first UNS tank. It's immaculate, the blue background is very pretty and well bonded to the glass. Arrived well packaged and safe. Seams are beautiful. I bought it to build a bookshelf terrarium for my Blue Death Feigning Beetles. Glass Aqua has always been a reliable place to get quality products. If you're on the fence, get it :)"
"This was my first UNS tank. I’ve seen the tanks in- person so I knew exactly what to expect. This was my first time ordering a tank online. I was hesitant to do so but was very happily surprised to open a well packed and protected aquarium. The package was shipped in a double-layered cardboard box with styrofoam padding along each side, and delivery went off without a hitch! I’m excited to order from Glass Aqua in the future"
"First id like to mention how well the tank was packed, thank glass aqua for insuring it arrived safe. The tank itself is pretty nice, I could argue it isn't worth the extra money and you could just put a blue background on a regular 60u but I'm very happy with it. No extra work once you get it home."
"I bought the 60S for an iwagumi project I’ve been planning. The tank is perfectly constructed and the mitered corners are an elegant detail. The glass is flawless. I can’t wait to get this project started."
"This was mothing like what i ordered. I got a tiny little tank with a lid that barely cover half the tank. It was supposed to be a 40 gallon tank with a glass lid. It was maybe a 2 gallon. It was definitely not what i ordered."
"I purchased the UNS 40C for a bioactive terrarium to house my pet millipede, and I couldn't be happier with it. The tank is exceptionally well built, with sturdy construction and a beautifully minimalist design. The glass is crystal clear, and its thickness gives the aquarium a premium, high-quality feel while providing confidence in its durability. It truly elevates the entire display and makes the terrarium look like a showcase piece. Highly recommended if you're looking for a rimless tank with outstanding craftsmanship."
"Beautiful glass aquarium, working on landscaping it and then adding my snails, shrimp, and fish to it after I get it all setup but it looks awesome."
"I really like my shallow fish tank. I recently bought a betta fish and my fish really likes his tank. The tank is super secure and made of crispy clear, high quality pieces of glass"
"Arrived in a timely manner, beautifully made, the stabilizer mat fits perfectly and it was well packed. Very happy with purchase."
"love it"
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.
