Reefer MAX 425 G2+ System (91 Gal) – White Red Sea

REEFER MAX 425 G2+ White by Red Sea Aquariums – Sleek Design Meets Serious Reefing Power

The REEFER MAX 425 G2+ White by Red Sea Aquariums is where modern elegance meets reefing performance. At 88 gallons display volume and packed with high-end tech, this system hits the sweet spot for serious hobbyists and ambitious upgraders alike.

This model belongs to the next-gen REEFER MAX lineup and blends seamless gear integration with sharp white cabinetry that feels more West Elm than fish tank. It's a reef system that doesn’t just keep up — it leads.

Premium Hardware, Compact Footprint – REEFER MAX 425 G2+ Essentials

The Red Sea REEFER MAX 425 brings high-end gear and automation to a manageable tank size that fits most living spaces.

Specs at a Glance:

• Main Display Volume: 88 gallons

• Total System Volume: ~112 gallons (with sump)

• Tank Dimensions: 47.2" L x 22.6" H x 22.6" W

• Cabinet Height: 35" – marine-grade white laminate

Included in the Package:

• (2) ReefLED 90 G2 Lights

• ReefATO+ Auto Top-Off System

• ReefMat 500 Filter Roller

• ReefRun DC Return Pump + Controller

• ReefBeat App Control Integration

Everything comes factory-installed and designed to work together out of the box — no extra plumbing, retrofitting, or adapter guessing games.

What Makes the Red Sea REEFER MAX 425 Different?

Some reef systems make you do all the work. This one anticipates your needs.

• ReefATO+ stabilizes salinity and handles top-off tasks behind the scenes

• ReefMat 500 eliminates filter sock swaps with an auto-rolling fleece system

• Dual ReefLED 90s offer high PAR and controllable spectrum via app

• ReefRun Pump keeps flow strong and silent, with RPM control

• ReefBeat App syncs it all in one dashboard

You’ll spend less time tinkering and more time growing coral — exactly how it should be.

Built for Coral Creativity and Effortless Maintenance

The REEFER MAX 425 G2+ offers wide aquascaping potential with nearly 4 feet of horizontal space. Whether you're going for minimalist islands or full-wall SPS stacking, this system gives you the flexibility to design your reef the way you want.

And the stand? Don’t let the white gloss fool you — it's more than pretty. The cabinet includes:

• Soft-close doors

• Internal cable routing

• Adjustable leveling feet

• Easy-access sump compartment

It’s equal parts form and function — something many tanks talk about but few deliver.

Looking to compare sizes? This tank fits right between other models in our Aquariums collection, offering more room than the 350 while keeping the footprint tighter than the 525.

Expand It or Keep It Clean — Either Way, You’re Covered

Like everything in the REEFER series, the 425 G2+ grows with your reef. Want to upgrade lighting later? Add extra ReefLEDs. Need precision dosing? Drop in a Red Sea Doser and control it through the same app.

For hobbyists who want clean lines, future flexibility, and tech that just works — this system doesn’t cut corners.

• Find different lighting options that match your reef goals
• Shop Dosing Pumps for nutrient control
• Fine Tune Your Water Flow with a Wavemaker
• Customize Your Entire Setup with our Aquarium Builder Tool

Follow Along With Our Aquatic Adventures

• Behind-the-scenes reef videos on TikTok

• Follow our coral drops on Instagram

• See tank setups and sales on Facebook
• Tap into expert tips on Reef2Reef