The UNS 45U 9.3 Gallon Ultra Clear Rimless Aquarium is one of Ultum Nature Systems' most popular models, prized by aquascapers for its versatile footprint and ideal proportion. It pairs a generous length with equal width and height dimensions, providing ample front-to-back depth in a compact desktop-friendly footprint.
Key Features & Benefits
91% Diamant Ultra-Clear Glass: Premium low-iron glass removes the greenish tint found in standard aquariums for true-to-life color reproduction.
45° Mitered Edges & German Silicone: Precision 45-degree joints double the bonding surface area for maximum structural strength and borderless viewing.
Golden Ratio Depth: Designed with an 11.02" front-to-back depth, providing essential breathing room for multi-layered hardscape placement and realistic depth of field.
Signature Laser-Etched Branding: Features a clean, laser-etched UNS logo in the glass corner for an authentic finish that will not peel or fade.
Acoustic Leveling Mat Included: Pre-cut dense foam leveling mat absorbs micro-vibrations, levels surface irregularities, and protects against glass stress points.
Model Dimensions & Specifications
Feature
Specification
Model
UNS 45U Nano Rimless
Dimensions (L x W x H)
17.71" x 11.02" x 11.02" (45 x 28 x 28 cm)
Total Volume
9.3 Gallons (35.2 Liters)
Glass Thickness
5 mm
Glass Type
91% Clarity Diamant Low-Iron Glass
Seam Construction
45° Precision Mitered Joints with German Silicone
Branding
Signature Laser-Etched Corner Logo
What's Included
1x UNS 45U Ultra Clear Rimless Glass Aquarium
1x Custom-Fit Black Foam Leveling Mat
Hassle-Free Guaranteed Tank Delivery
We always guarantee safe delivery of our tanks. In the unlikely event that your tank arrives damaged or broken by the carrier, we will immediately ship out a replacement at no additional cost to you. Please send photos of the damaged tank in its original shipping box so that we can file a claim with UPS on your behalf. Please allow an additional 2-3 business days in case of potential logistical delays.
Frequently Asked Questions
1. Why is the UNS 45U one of the most popular rimless aquariums?
The 45U hits a "sweet spot" for nano aquascaping: its 9.3-gallon capacity provides greater water volume stability than micro tanks while maintaining a manageable footprint that easily fits on desks, counters, or small stands.
2. What livestock is best suited for a 9.3-gallon aquarium?
The 9.3-gallon capacity is well-suited for small nano schooling fish (such as Chili Rasboras, Ember Tetras, or Celestial Pearl Danios), a showpiece Betta fish, or thriving colonies of ornamental dwarf shrimp and snails.
3. Why is a leveling mat necessary for rimless aquariums?
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: 4.883333 / 5 from 60 reviews.
AI Generated Review Summary
The UNS 45U Ultra Clear Rimless Aquarium is praised for its stunning appearance, exceptional clarity, and high-quality construction. Customers appreciate its unique dimensions, perfect for various aquascapes, and the reliable service provided by BucePlant. The tank's fast shipping and secure packaging further enhance the overall customer experience.
Summary topics
Appearance (12%): Customers expressed appreciation for the looks of the aquarium, with multiple reviews mentioning that it looks great.
Shipping Speed (21%): Customers keep praising the fast shipping of the tank, with many mentioning it arrived quickly and safely.
Packaging Quality (7%): It was reported by customers that the packaging for the product was great and arrived in perfect condition.
Glass Clarity (10%): It was noted by customers that the glass in the tank is super clear and of high quality.
Tank Size (10%): Customers keep praising the perfect size of the tank, which is suitable for various scapes.
"No issues with quality control and Buceplant packaged the tank really well for transit." — Brice A.
"The tank looks great and shipping was excellent" — Josh H.
"Amazing build quality and extremely fast shipping, plus the order arrived safe with very secure packaging." — Bryan M.
Reviews
Extremely happy with my tank.
"The packaging was perfection! My UNS 45U tank was very protected. The tank itself is beautiful and I will for sure keep ordering more items from this site. Very reliable."
— Indira G. (5/5)
Excellent shipping and quality tank!
"Beautiful UNS tank with a leveling mat!"
— Littleish F. (5/5)
Crystal Clear Tank
"The glass on this tank is immaculate and crystal clear. UNS only produces quality."
— Brian B. (5/5)
No one can beat UNS
"No one can beat UNS quality… except maybe ADA lol. I love UNS and plan on buying more of their tanks."
— Brandon H. (5/5)
45U- Perfect beginner aquarium
"it is a great tank. The glass is low iron and very clear 5mm thickness. 17x11x11 is ideal size for my space. Great beginner aquarium. Mine will be used for fresh water planted tank. Provides great options for aquas-caping."
— Zahab Q. (5/5)
Efficient arrival and great product
"The aquarium arrived a little under a week after I ordered it and there were no delays. This aquarium is perfect for beginners like me. The dimensions are good for almost any desk. This aquarium also fits the majority of nano fish."
— Abram S. (5/5)
Center Piece of Living Room.
"Very Clear! Came in Perfect. Looks Good in the Hallway."
— Steve L. (5/5)
First Tank
"Package came shipped packaged safely with no damage to the tank. Foam padding had a smaller tank indent so not sure if it was a return or what but still worked fine for my tank."
— Jose C. (5/5)
Beautiful tank!! Great upgrade!
"Beautiful tank! Ive been in the hobby for close to 35 years. I've had many tanks along the way of all shapes and sizes. They have all been rimmed tanks. This is my first rimless aquarium, and I'm blown away by the look and quality of it! It is going to be hard to have anything else when it comes to my display tanks moving forward. I'm happy that I made this decision, and I will definitely be purchasing one again for my next setup."
— Jared G. (5/5)
Perfect for a Main Tank or Starter Tank
"Love this for my Danios and Rasboras. Perfect for beginner or pro and fits just about anywhere. Perfect edges and doesn’t leak like some rimless tanks elsewhere."
— Nick Y. (5/5)
Q&A
What low profile tank light will work with theb45U 9 gallon tank. Thank you!
Hi Tara, Thank you for reaching out to us! All the 450 (18") Twinstars, 45B, and aquaworx 18" are options that will fit a 45U. Best Regards, Buceplants Team
Where do you recommend getting a lid for this aquarium?
Hi Meg, Thank you for reaching out to us! A lid for the UNS 45U can be found on our website. Here is the link for you to take a look: https://buceplant.com/products/uns-rimless-tank-glass-lids-clips?_pos=1&_sid=d486a5b9a&_ss=r&variant=46093104205 Please do not hesitate to contact us at support@buceplanthelp.zendesk.com for any additional questions or concerns. We are always happy to help! Best Regards, Buceplant Team
Why are you not in stock??? This is extremely irritating to potential customers.
Hi Betty, This product has sold out. We are expecting a new shipment soon and recommend that you add it to your wishlist to be automatically notifiied of its restock!
