Red Sea REEFER 170 G3 (Black)

Red Sea REEFER 170 G3 Aquarium (Black) – Compact Elegance for Modern Reefing

The Red Sea REEFER 170 G3 Aquarium (Black) offers a perfect blend of innovation and timeless craftsmanship. Designed by Red Sea Aquariums in the REEFER Series, this model anchors the next generation of precision-built reef systems under the Aquariums category. It’s a sleek, space-conscious setup for reefers who want pro-level features in a compact form factor.

A Smarter Evolution of the REEFER 170 G3 Aquarium (Black)

This upgraded model takes the trusted REEFER 170 layout and adds smarter engineering throughout. The low-profile overflow box keeps the viewing area open, while ultra-clear beveled glass gives a crisp, museum-grade view of your corals and rockwork. The reinforced eurobracing provides extra support without interrupting the clean, rimless look Red Sea is known for.

The black finish adds depth and a polished feel, blending seamlessly with both light and dark interiors. It’s the kind of aquarium that looks as professional in a living room as it does in a coral studio.

Engineered for Performance and Quiet Operation

Red Sea’s ReefGate Flow Valve makes fine-tuning water drainage almost effortless, eliminating the usual gurgle that plagues most systems. Every G3 arrives pre-plumbed and ready for assembly—no gluing, no guesswork, and no frustration.

The included ReefATO+ Auto Top-Off System integrates seamlessly with Red Sea’s ReefBeat App, giving you real-time monitoring for water level, temperature, and leak detection. It’s practical tech that quietly does its job while you enjoy the view.

System Highlights:

• 33.8-gallon rimless glass display tank

• 9.8-gallon glass sump with open layout

• Compatible with ReefMat 250 and REEFER DC 300 skimmer

• Built-in ReefATO+ auto top-off and monitoring system

• Choice of black or white marine-spec stand

• Five-year warranty upon registration (three years standard)

Built Like Furniture, Not Just Equipment

The REEFER cabinet is built to last. Crafted from marine-grade laminated plywood, it’s resistant to moisture, perfectly aligned to the tank’s contours, and fitted with corrosion-proof hardware. Adjustable leveling feet make setup simple, and the matte finish complements the glossy display for a balanced, modern aesthetic.

The Heart of the System – A Flexible, Future-Proof Sump

Red Sea designed the G3 sump layout for both simplicity and expansion. The open glass sump gives aquarists room to customize filtration equipment without compromise. It’s ideal for adding a ReefMat fleece roller, upgrading skimmers, or experimenting with refugium setups later on.

As your reef evolves, this sump evolves with it—something longtime reefers will appreciate when the upgrade bug inevitably hits.

Specifications (U.S. Measurements)

• Display Tank Dimensions: 23.6" L × 19.7" W × 20.1" H

• Total System Height: 53.9"

• Display Tank Volume: 33.8 Gallons

• Total System Volume: 43.6 Gallons

• Sump Volume: 9.8 Gallons

• Glass Thickness: Front/Bottom: 0.39", Sides: 0.47"

• ReefATO+ Pump Power: 6–10 Watts

• Max Flow Rate: 75 GPH

• Max Head Height: 8 Feet

Note: The included ReefATO+ system is not intended for freshwater aquariums.

What’s Included

• REEFER 170 G3 Aquarium (Black)

• Marine-Spec Cabinet (color of choice)

• Glass Sump & Pre-Glued Plumbing

• ReefATO+ Auto Top-Off System

Reccomended Additions

• ReefMat 250 Fleece Roller Filter
• REEFER DC 300 Protein Skimmer

Warranty Coverage

All REEFER G3 aquariums include a three-year manufacturer warranty, with an optional two-year extension when registered within 90 days of purchase.

Frequently Asked Questions About the Red Sea REEFER 170 G3 Aquarium (Black)

How much space does the REEFER 170 G3 need?
The system stands roughly 54 inches tall and occupies just under 2×2 feet of floor space, making it ideal for apartments or compact reef rooms.

Can I add the ReefMat 250 to this model?
Yes. The sump layout was specifically designed to fit the ReefMat 250, offering automated filtration without modification.

Is the included ReefATO+ easy to set up?
Absolutely. The ReefATO+ connects directly to the ReefBeat App, letting you track top-off levels and temperature from your phone.

Is this aquarium suitable for beginners?
Yes, the REEFER 170 G3 strikes a balance between beginner-friendly setup and long-term expandability.

What lighting works best for this system?
Many reefers pair it with Red Sea’s ReefLED 90, or a comparable 24–30-inch LED fixture for balanced coverage.

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