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Ultum Nature Systems

UNS Ultra Clear Rimless Tank - 21.3GAL | 81L - 35.43x11.81x11.81 | 90x30x30 CM, 8mm Glass Thickness, Leveling Mat Included - Low Iron, High Clarity Fish Tank w/ 45° Mitered Edge - [90L]

  • Based on 262 reviews
Condition: New
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Availability: In Stock.
Fulfilled by SubstrateSource
Arrives Sep 23 – Sep 27
Order within 12 hours and 33 minutes
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Pattern Name: Long


Size: [90L] - 21.3G / 81L - 90x30x30 CM


Features

  • Crafted with low iron 91% clarity glass and 45-degree corners The glass appears clearer with a minimal greenish or blue tint with uninterrupted edges, providing a more true-to-life representation of your aquatic environment.
  • Constructed with German made silicone Bonded together using high quality adhesive rated for moisture and durability, our tanks give peace-of-mind for even the most dedicated aquarium enthusiasts.
  • Leveling mat included Leveling mats add a non-slip surface to the base of your tank and are a necessity for adding support and stability for keeping your tank safe and secure from shifting or slipping.
  • 90L Rimless Glass Tank Details: Dimensions - 35.43" x 11.81" x 11.81" (Length x Width x Depth) ; Glass Thickness - 8 millimeters ; Volume - 21 Gallons.

Brand: Ultum Nature Systems


Material: Glass


Tank Volume: 21 Gallons


Special Feature: Rimless, Transparent, High Clarity Glass


Product Dimensions: 35.43"L x 11.81"W x 11.81"H


Specific Uses For Product: Indoor


Style: Traditional


Color: Long


Included Components: Black Dense Foam Leveling Mat


UPC:


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 35.43 x 11.81 x 11.81 inches


Item model number ‏ : ‎ caf654ba-7b6b-4cf3-8c08-d957e2fc365f


Date First Available ‏ : ‎ September 25, 2019


Manufacturer ‏ : ‎ Ultum Nature Systems


Best Sellers Rank: #33,084 in Pet Supplies (See Top 100 in Pet Supplies) #43 in Aquariums


#43 in Aquariums:


Customer Reviews: 4.7 4.7 out of 5 stars 262 ratings


Manufacturer: Ultum Nature Systems


Item model number: caf654ba-7b6b-4cf3-8c08-d957e2fc365f


Date First Available: September 25, 2019


Item Dimensions LxWxH: 35.43 x 11.81 x 11.81 inches


Brand Name: Ultum Nature Systems


Target Audience Keyword: fish


Color: Long


Size: [90L] - 21.3G / 81L - 90x30x30 CM


Material: Glass


Number of Items: 1


Style: Traditional


Included Components: Black Dense Foam Leveling Mat


Specific Uses for Product: Indoor


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 23 – Sep 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • CRAFTMANSHIP
Size: [25T] 5.9GAL | 22.5L
Review Image by Ashley Ashley
Review Image by Ashley Ashley
Review Image by Ashley Ashley
The media could not be loaded. Absolutely spectacular. My 7-year-old an I spent an entire afternoon bc rearing our scape. It’s just beautiful. The craftmanship. The attention to detail. Our ecosystem is alive and well.
Reviewed in the United States on March 28, 2025 by Ashley Ashley
    • Most beautiful tank
Review Image by Alexandria Stuart Alexandria Stuart
I’ve been looking for a bookshelf tank since forever that was a good price and I finally found one! It’s durable, no cracks, and my betta loves how wide it is in comparison to his 5g cube.
Reviewed in the United States on February 6, 2025 by Alexandria Stuart Alexandria Stuart
    • beautiful tank
Size: [45S] 5.9GAL | 22.6L
beautiful tank, the glass is so clear and the perfect size for my office
Reviewed in the United States on February 23, 2025 by Daniel C.
    • Small but cute!
Size: [25S] 2.1 GAL 9.84" x 9.84" x 5.11"
Review Image by Virginia Virginia
This tank is very small for the price.. but its honestly really cute but have fun trying to gravel vac and clean because so far its impossible for me, there was no leakage at all either!
Reviewed in the United States on February 22, 2025 by Virginia Virginia
    • Amazing tank
Size: [5S] 2.5 GAL 14.17" x 8.66" x 4.72"
Review Image by david pires david pires
This tank is gorgeous. It’s the 3.5 shallow. It came extremely well packaged with no chips or cracks and the balancing mat underneath is amazing. This tank is very well built.
Reviewed in the United States on March 12, 2025 by david pires david pires
    • 45S - but they've got so many other great concepts.
Size: [45S] 5.9GAL | 22.6L
Review Image by M. DeKalb M. DeKalb
Review Image by M. DeKalb M. DeKalb
Review Image by M. DeKalb M. DeKalb
Review Image by M. DeKalb M. DeKalb
45S - 5.9 gallon, shallow. I keep a Betta housed in this. He seems to like it. He's always making bubble nests. I think it's a great aquarium. Would definitely buy UNS again if I were in the market for a unique, well designed aquarium.
Reviewed in the United States on March 22, 2025 by M. DeKalb M. DeKalb
    • Gorgeous small aquarium
Size: [25C] 4 Gal 9.84 x 9.84 x 9.84
This concerns the 4.1 gallon size aquarium, which arrived today. It's stated as a 10 inch cube, but that's approximate. It's actually metric, 25 centimeters along each edge. That 25 cm is correct, according to my tape measure. In inches, it's 9.84, if anybody cares about the difference, which I don't. The glass thickness is 5 millimeters, by my actual measurement. It was very well packed. When it arrived, one edge of the carton was dented, which worried me. No problem, though. Inside the carton, the aquarium was protected by a top cap, a bottom cap, and stiff edge protectors, all surrounded by a thick layer of styrofoam peanuts. So despite the dented carton, the aquarium was fine. Styrofoam peanuts are a nuisance because of static electricity, and they shed tiny particles, but they do a great job of protection, and that's what counts. The aquarium looks perfect. I examined it very carefully, all the sides, the bottom, all the edges, both visually, and by running my fingertips along the edges. No roughness or unevenness, no problems at all, that I could find. Flawless. When I was chasing tiny particles of styrofoam with a moist paper towel, I noticed the glass was squeaky clean. That's exactly what the whole aquarium looks like, a pristine cube of squeaky clean glass. It passed the initial exam with flying colors. I'll check it for leaks by adding a little distilled water now and then over the next couple days. Based on how well made it looks, I don't expect any problem, but if it leaks I'll edit this and let people know. I think my Betta is going to be a happy camper pretty soon. ... show more
Reviewed in the United States on February 20, 2019 by Jeff Jordan
    • good price for the best tanks out there
Size: [45T] 11.9GAL | 45.3L
quality built tank. Great customer service, tank arrived broken from shipping and was replaced immediately.
Reviewed in the United States on March 7, 2025 by Gabriel

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