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 by 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 in the video below is a Ultum Nature Systems 20C rimless tank:
45° Mitered Edges
91% Clarity with Diamant Glass
High-Quality German Silicon
Sizes from 1 gallons to 16 gallons
Perfect size for tighter spaces
Ideal for aquarium livestock choices such as Betta fish, Neocaridina shrimp and smaller nano schooling fish species such as Tetras and Rasboras
Black Leveling Mat
Tank Size Guide
W x D x H
|Glass Thickness (MM)||Volume (GAL)|
|16C||6.29 x 6.29 x 6.29||5||1|
|20C||7.87 x 7.87 x 7.87||5||2.1|
|25C||9.84 x 9.84 x 9.84||5||4.1|
|30C||11.81 x 11.81 x 11.81||5||7.1|
|40C||15.75 x 15.75 x 15.75||6||16.9|
|45C||17.71 x 17.71 x 17.71||6||22.8|
|50C||19.68 x 19.68 x 19.68||8||30.9|
|60C||23.62 x 23.62 x 23.62||10||57|
Shipping, Returns and Refunds
Live plants are shipped Monday - Friday for all west coast orders. For all remaining states, live plants will only be shipped Monday through Wednesday and Friday to ensure they arrive at your doorstep 100% healthy.
Rimless aquariums will be shipped throughout the week via UPS or Fedex Ground. For more information, please visit our FAQ page.
Hard goods can be returned up to 14 days after receipt of purchase. Buyer is responsible for return shipping.
Due to its nature, we are unable to accept returns for live plants. In the unlikely event you are unsatisfied in any way, please contact us ASAP. We provide 100% DOA (Dead On Arrival) protection.
To be eligible for a refund/store credit, please contact us within 12 hours of receiving it and provide a photo of the item in its original packaging.
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.