UNS 90A - 74.5 Gallon Dual AIO Rimless Aquarium
Product Overview
The UNS 90A Dual AIO is a flagship 74.5-gallon rimless aquarium constructed from 12mm ultra-clear glass with an integrated quadruple-chamber rear filtration system. By concealing equipment behind a sleek black acrylic wall, this plug-and-play setup eliminates external canister hoses and plumbing for a clean, distraction-free display. Engineered with dual return pumps and expanded media chambers, the 90A provides a panoramic window built for large-scale planted aquascapes and full-size marine reef setups.
Key Features & Benefits
- 91% Diamant Ultra-Clear Glass: Heavy-duty, low-iron glass eliminates the green tint found in standard aquariums for true-to-life color accuracy.
- 45° Mitered Edges & German Silicone: Precision 45-degree joints increase bonding surface area for nearly invisible seams and high structural strength.
- Integrated Quad-Chamber Filtration: Native rear sump conceals mechanical, biological, and chemical media out of sight.
- Dual Pump Circulation: Includes two submersible return pumps with dedicated tubing and adjustable trumpet nozzles for high-volume water movement.
- Complete Filtration Package: Equipped with 8 UNS Bio Blocks, two coarse filter sponges, media riser trays, and dual acrylic back lids to minimize evaporation and noise.
- Acoustic Leveling Mat Included: Pre-cut dense foam mat cushions the bottom panel, absorbs micro-vibrations, and prevents stress cracks.
Model Specifications
| Feature | Specification |
|---|---|
| Model | UNS 90A Dual AIO |
| Dimensions (L x W x H) | 35.43" x 22.04" x 22.04" (90 x 56 x 56 cm) |
| Total Volume | 74.5 Gallons (282.0 Liters) |
| Glass Thickness | 12 mm |
| Tank Style | Large All-In-One (AIO) |
| Glass Type | 91% Clarity Diamant Low-Iron Glass |
| Seam Construction | 45° Mitered Joints with German Silicone |
| Included Return Pumps | 2x Submersible Water Pumps with Dual Outflow Nozzles |
Rear Chamber Accessory Compatibility
- Chambers 1 & 4 (Dual Intakes): Pre-fitted with coarse sponges. Compatible with optional intake guards, nylon filter socks, or honeycomb filter sock conversion kits. (Dimensions: 3.11" x 3.94" x 21.37")
- Chamber 2 (Media / Skimmer Zone): Features a fixed water level designed to hold a UNS Dual AIO Protein Skimmer or UNS Refugium. (Dimensions: 10.15" x 3.94" x 21.37")
- Chamber 3 (Return Zone): Houses dual submersible pumps connected to dedicated dual returns. (Dimensions: 17.23" x 3.94" x 21.37")
Looking to customize your setup? Browse compatible add-on accessories here.
What's Included
- 1x UNS 90A Ultra Clear Glass Tank with Integrated Quad Back Chamber
- 1x Pre-Cut Black Leveling Mat
- 2x Back Chamber Acrylic Lids
- 2x Media Riser Trays
- 2x Coarse Mechanical Filter Sponges
- 8x UNS Bio Blocks (High-Porosity Biological Media)
- 2x Submersible Water Pumps with Hoses
- 2x Adjustable Outflow Trumpet Nozzles
Frequently Asked Questions
1. Do I need a separate filter for the UNS 90A Dual AIO aquarium?
No. The 90A Dual AIO includes a complete quadruple-chamber rear filtration system equipped with two return pumps, coarse mechanical sponges, media riser trays, and eight UNS Bio Blocks. You only need to add an aquarium heater and light fixture.
2. Can I use the UNS 90A Dual AIO for a marine or saltwater reef tank?
Yes. The rear filtration chambers are specifically dimensioned to house marine equipment, such as the UNS Dual AIO Protein Skimmer, refugium lights, or custom media socks, making it a complete plug-and-play platform for reef aquariums.
3. Why is a leveling mat necessary for rimless aquariums?
Because rimless glass tanks rest directly on their bottom panel without a raised plastic frame, microscopic imperfections or sand grains on a stand can create concentrated stress points under weight. The included foam leveling mat absorbs micro-vibrations and distributes weight evenly to prevent stress cracks.