UNS 40C - 16.9 gallon Ultra Clear Rimless Aquarium/ Tank

Product Overview

The Ultum Nature Systems (UNS) 40C Ultra Clear Rimless Cube Aquarium delivers a perfectly balanced mid-size aquascaping platform built for clean design, immersive viewing, and professional-level clarity.

Crafted in a true symmetrical cube form factor, this 40×40×40cm tank creates equal depth and viewing dimension from every angle. Its compact yet spacious profile is ideal for stunning hardscape layouts, island-style rock and wood scapes, lush planted communities, dwarf shrimp colonies, and peaceful nano fish setups. With true 360° aesthetic potential, the UNS 40C is one of the most versatile rimless tanks for hobbyists seeking clean, minimalist, and high-end aquatic displays.

Key Features & Benefits

91% High-Transmission Diamant Ultra-Clear Glass

Built with premium low-iron Diamant glass that eliminates the green tint common in standard aquarium glass. Enjoy true-to-life color reproduction, exceptional light penetration, and crystal-clear transparency for vivid plant, fish, and hardscape detail.

45° Precision Mitered Edges + German Premium Silicone

Precision machine-cut 45° mitered joints maximize bonding surface area, allowing high-strength German clear silicone to create ultra-clean, seamless, structurally reinforced seams. This advanced construction delivers superior durability, long-term water tightness, and a flawless frameless appearance.

True Symmetrical Cube Geometry

Uniform 15.75-inch length, width, and height provide balanced depth and proportion, supporting professional aquascaping layouts from all viewing angles. The symmetrical design enhances composition flexibility for nature scapes, Iwagumi styles, and biotope setups.

Permanent Laser-Etched UNS Branding

Subtle, premium laser-engraved UNS logo on the glass corner provides authentic brand finishing without stickers, fading, or peeling—maintaining a pristine rimless look permanently.

Included Custom Shock-Absorbing Leveling Mat

Comes with a precision-cut high-density foam leveling pad. The mat stabilizes the tank, absorbs micro-vibrations, compensates for minor surface unevenness, and distributes weight evenly to prevent stress cracks and structural strain under full water load.

Model Specifications
Feature Specification
Model UNS 40C Rimless Cube Aquarium
Dimensions 15.75” × 15.75” × 15.75” (40×40×40 cm)
Water Volume 16.9 Gallons / 64.0 Liters
Glass Thickness 6 mm
Glass Material 91% Clarity Diamant Low-Iron Ultra-Clear Glass
Construction 45° Mitered Joints with German Clear Aquarium Silicone
Branding Permanent Laser-Etched Corner Logo

What’s Included

• 1 × UNS 40C Ultra Clear Rimless Cube Aquarium

• 1 × Custom-Fit High-Density Black Leveling Foam Mat