---
product_id: 38985583
title: "Ultum Nature Systems Ultra Clear Rimless Aquarium - Low Iron Glass Fish Tank with 45° Mitered Edges, 5mm-12mm Thick, Leveling Mat Included (3N, Nano, 3 Gallon)"
brand: "ultum nature systems"
price: "€ 302.67"
currency: EUR
in_stock: true
reviews_count: 12
category: "Ultum Nature Systems"
url: https://www.desertcart.hr/products/38985583-ultum-nature-systems-ultra-clear-rimless-aquarium-low-iron-glass
store_origin: HR
region: Croatia
---

# 45° precision mitered edges 91% ultra-clear low iron glass Includes anti-slip leveling mat Ultum Nature Systems Ultra Clear Rimless Aquarium - Low Iron Glass Fish Tank with 45° Mitered Edges, 5mm-12mm Thick, Leveling Mat Included (3N, Nano, 3 Gallon)

**Brand:** ultum nature systems
**Price:** € 302.67
**Availability:** ✅ In Stock

## Summary

> 🌊 See your aquatic world like never before with crystal clarity and sleek design!

## Quick Answers

- **What is this?** Ultum Nature Systems Ultra Clear Rimless Aquarium - Low Iron Glass Fish Tank with 45° Mitered Edges, 5mm-12mm Thick, Leveling Mat Included (3N, Nano, 3 Gallon) by ultum nature systems
- **How much does it cost?** € 302.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/38985583-ultum-nature-systems-ultra-clear-rimless-aquarium-low-iron-glass)

## Best For

- ultum nature systems enthusiasts

## Why This Product

- Trusted ultum nature systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable German Silicone Bonding:** Built to last with premium moisture-resistant silicone ensuring leak-proof, long-term durability.
- • **Crystal-Clear Viewing Experience:** Experience your aquatic world in stunning 91% clarity glass with minimal green tint for true-to-life colors.
- • **Sleek Rimless Design with Golden Ratio:** Elevate your space with minimalist, rimless aesthetics crafted to the perfect proportions for visual harmony.
- • **Compact Yet Spacious 3-Gallon Nano Tank:** Optimized dimensions provide ample room for your aquatic life while fitting seamlessly into modern interiors.
- • **Perfect Stability with Included Leveling Mat:** Keep your tank secure and perfectly balanced on any surface—no more slipping or shifting worries.

## Overview

The Ultum Nature Systems Ultra Clear Rimless Aquarium is a 3-gallon nano tank crafted from 91% clarity low iron glass with 45° mitered edges bonded by high-quality German silicone. Designed using the golden ratio for aesthetic balance, it features a minimalist rimless look and includes a black anti-slip leveling mat for stability. Ideal for aquascaping enthusiasts seeking a visually stunning, durable, and easy-to-maintain aquarium.

## Description

These rimless aquariums are carefully crafted using 91% clarity diamante glass, a highly transparent extra clear glass with very little residual green color. The low iron content in the glass provides uninterrupted crystal clear visibility. The 45° mitered edges are bonded together using high performance German silicone specifically designed for aquarium construction. Rather than following the conventional sizing of other rimless aquarium brands, our dimensions keep the aqua caper in mind by focusing on the golden ratio. The additional space makes it easier to achieve that sense of perspective and truly show depth in an aqua cape. Each ultra clear tank comes with a black leveling mat which is crucial so you don't have to cut up your wife's yoga mat.

Review: absolutely beautiful tank - it took a little while to get here I would say maybe a week and a half two weeks I can’t remember exactly the tank is absolutely beautiful. We really wanted this brand this is the one artificial intelligence told us to get. But they did not make it in the size that we needed we only had one area that we could put it. So we tried because we accidentally thought we were ordering the correct size and the wrong size came so in any event this is still beautiful but we had to return it I would highly recommend these tanks but it’s hard to find them
Review: Crystal clear, sturdy - Huge fan of UNS tanks. This is my second one. My betta is happy and healthy.

## Features

- Ultum Nature Systems rimless aquariums are a staple within the aquascaping community – Our tanks are designed using the golden ratio while keeping a minimalist appearance in mind, combined with the increased clarity of ultra clear glass, they are aesthetically pleasing in any room.
- 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.
- 3N - 12.2" x 7.48" x 7.48"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01LYOEOIS |
| Additional Features | Easy to Clean, Rimless |
| Best Sellers Rank | #32,375 in Pet Supplies ( See Top 100 in Pet Supplies ) #32 in Aquariums |
| Brand | Ultum Nature Systems |
| Brand Name | Ultum Nature Systems |
| Color | Nano |
| Customer Reviews | 4.8 out of 5 stars 357 Reviews |
| Global Trade Identification Number | 00863741000315 |
| Included Components | Black Dense Foam Leveling Mat |
| Item Dimensions L x W x H | 12.2"L x 7.48"W x 7.48"H |
| Item Shape | Rectangular |
| Item Weight | 2.27 kg |
| Manufacturer | Ultum Nature Systems |
| Manufacturer Part Number | 3N |
| Material | Glass |
| Material Type | Glass |
| Model Number | 3N |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Product Dimensions | 12.2"L x 7.48"W x 7.48"H |
| Product Style | Modern |
| Special Feature | Easy to Clean, Rimless |
| Specific Uses For Product | Indoor |
| Tank Volume | 3 gallons |
| UPC | 863741000315 |
| Unit Count | 1 Count |
| Vivarium Type | Aquarium |

## Product Details

- **Brand:** Ultum Nature Systems
- **Color:** Nano
- **Item Weight:** 7 Pounds
- **Material:** Glass
- **Product Dimensions:** 14.17"L x 8.66"W x 8.66"H
- **Shape:** Rectangular
- **Special Feature:** Easy to Clean, Rimless
- **Specific Uses For Product:** Indoor
- **Style:** Traditional
- **Tank Volume:** 4 Gallons

## Images

![Ultum Nature Systems Ultra Clear Rimless Aquarium - Low Iron Glass Fish Tank with 45° Mitered Edges, 5mm-12mm Thick, Leveling Mat Included (3N, Nano, 3 Gallon) - Image 1](https://m.media-amazon.com/images/I/71HRsu7HdHL.jpg)
![Ultum Nature Systems Ultra Clear Rimless Aquarium - Low Iron Glass Fish Tank with 45° Mitered Edges, 5mm-12mm Thick, Leveling Mat Included (3N, Nano, 3 Gallon) - Image 2](https://m.media-amazon.com/images/I/61k3DitrilL.jpg)
![Ultum Nature Systems Ultra Clear Rimless Aquarium - Low Iron Glass Fish Tank with 45° Mitered Edges, 5mm-12mm Thick, Leveling Mat Included (3N, Nano, 3 Gallon) - Image 3](https://m.media-amazon.com/images/I/71iVVdl0a2L.jpg)
![Ultum Nature Systems Ultra Clear Rimless Aquarium - Low Iron Glass Fish Tank with 45° Mitered Edges, 5mm-12mm Thick, Leveling Mat Included (3N, Nano, 3 Gallon) - Image 4](https://m.media-amazon.com/images/I/7152X9V6BTL.jpg)
![Ultum Nature Systems Ultra Clear Rimless Aquarium - Low Iron Glass Fish Tank with 45° Mitered Edges, 5mm-12mm Thick, Leveling Mat Included (3N, Nano, 3 Gallon) - Image 5](https://m.media-amazon.com/images/I/71GHU8vBF7L.jpg)

## Available Options

This product comes in different **Pattern, Size** options.

## Questions & Answers

**Q: How long is the tank?**
A: I have the 7 gallon tank.  It is a perfect square: 12 x 12 x 12 inches.

**Q: how thick is the glass?**
A: It is thin. About 1/16 inch.

**Q: Is there a glass cover available that will fit this and stay in place for fish that like to jump?**
A: The Ultum systems are meant for beautiful aquascapes, unencumbered by lids. For the 4.6 gallon, the best solution might be to have a piece of glass custom cut. An auto glass shop will do this, and smooth the edges, for about $12 - $15 USD.

**Q: does it come with a lid?**
A: No, it does not come with a lid. However, if you go to an auto glass shop, a custom cut piece of regular glass, with smoothed edges, will cost you very little - about $12. Alternatively, you could get a piece of pre-cut acrylic. Amazon sells such a thing.

## Customer Reviews

### ⭐⭐⭐⭐⭐ absolutely beautiful tank
*by T***! on July 11, 2026*

it took a little while to get here I would say maybe a week and a half two weeks I can’t remember exactly the tank is absolutely beautiful. We really wanted this brand this is the one artificial intelligence told us to get. But they did not make it in the size that we needed we only had one area that we could put it. So we tried because we accidentally thought we were ordering the correct size and the wrong size came so in any event this is still beautiful but we had to return it I would highly recommend these tanks but it’s hard to find them

### ⭐⭐⭐⭐⭐ Crystal clear, sturdy
*by E***E on July 13, 2026*

Huge fan of UNS tanks. This is my second one. My betta is happy and healthy.

### ⭐⭐⭐⭐⭐ As advertised
*by A***R on July 26, 2026*

Came very well packaged. Tank is beautiful

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-30*