Red Sea REEFER 200 G3 in White (42 Gal)
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Red Sea REEFER 200 G3 in White – Where Design Meets Practical Reefing
The Red Sea REEFER 200 G3 in White blends modern craftsmanship with the reliability reefers expect from Red Sea Aquariums and the REEFER series. You’ll find it alongside other premium systems in our Aquariums and Tanks section, where thoughtful engineering meets long-term performance. Its crisp white cabinet brightens any room, while the rimless design and integrated ReefATO+ system keep maintenance simple and the display stunning.
Refined Engineering for a Seamless Experience
The Red Sea REEFER 200 G3 in White delivers a quiet, powerful, and refined aquarium setup that makes reefing more enjoyable. Red Sea reimagined this system with polished edges, low-profile overflow, and durable ultra-clear glass that highlights coral color and texture. The compact footprint hides its strength well—its reinforced build supports steady water pressure while keeping the sleek, rimless aesthetic intact.
Thoughtful Design, Inside and Out
Every detail in the REEFER 200 G3 feels deliberate. The redesigned plumbing layout cuts unnecessary bends, creating smoother flow and quieter operation. With the ReefGate flow valve, hobbyists can fine-tune drainage for silent performance, while the ReefATO+ Auto Top-Off System ensures ideal water levels and temperature balance. Paired with the ReefBeat App, you’ll always know your system’s status.
Highlights:
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41.7-gallon ultra-clear rimless display
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11-gallon glass sump with open layout
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ReefGate flow valve for precision control
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ReefATO+ system with integrated leak and temperature monitoring
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Marine-spec cabinet in black or white finishes
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Optional upgrade compatibility with ReefMat 250 and REEFER DC 300 Skimmer
Built to Outlast Trends
The white cabinet isn’t just décor—it’s a marine-grade structure made from laminated plywood and corrosion-resistant hardware. The cabinet follows the contour of the aquarium perfectly, blending into modern interiors with ease. Leveling feet keep it steady, even on older floors that aren’t perfectly even, and the matte white finish reflects light beautifully, making your reef look brighter and more spacious.
Easy Setup and Smarter Maintenance
The Red Sea REEFER 200 G3 in White comes ready to assemble—no messy adhesives or plumbing guesswork required. Every connection arrives pre-fitted, and setup takes less time than unpacking your latest Amazon order. Its sump layout gives you the flexibility to integrate advanced equipment as your coral collection grows, whether you’re chasing automation or just want a system that won’t fight you back.
System Specifications:
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Display Dimensions: 23.6" L × 22.6" W × 20.9" H
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Total Height: 55.1"
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Display Volume: 41.7 Gallons
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Total Volume: 52.8 Gallons
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Sump Volume: 11 Gallons
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Glass Thickness: Front/Bottom 0.39", Sides 0.47"
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Pump Power: 6–10 Watts
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Max Flow: 75 GPH
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Max Head: 8 Feet
Note: The included ReefATO+ is designed exclusively for saltwater aquariums.
What’s Inside the Box
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REEFER 200 G3 Aquarium (White)
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Marine-Spec Cabinet (white finish)
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Glass Sump and Pre-Assembled Plumbing
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ReefATO+ Auto Top-Off System
Warranty and Support
Red Sea backs the REEFER G3 line with a standard three-year warranty, extendable to five years with registration within 90 days. This added protection gives reefers peace of mind—because equipment this good deserves a long life.
Frequently Asked Questions About the Red Sea REEFER 200 G3 in White
How much space does this system need? The footprint is just under two square feet, perfect for compact reef setups.
Can the sump handle a ReefMat 250? Yes, it’s designed with enough clearance for the ReefMat 250 fleece roller.
Is the cabinet water-resistant? Absolutely. The marine-grade laminate resists moisture and maintains strength even in high-humidity rooms.
Does the ReefATO+ require Wi-Fi? It connects to the ReefBeat App via Wi-Fi for monitoring and notifications, though it functions independently once configured.
What lighting pairs best with this tank? The Red Sea ReefLED 90 or similar compact LED system provides balanced coverage for corals in this size class.
Final Thoughts
The Red Sea REEFER 200 G3 in White transforms small-space reefing into a clean, high-performance experience. It’s not just another aquarium—it’s a foundation for serious reefers who appreciate quiet operation, crisp visuals, and a touch of modern style.


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