Red Sea REEFER MAX 300 G3+ Aquarium System (65 Gal)

The Red Sea REEFER MAX 300 G3+ is a complete, plug-and-play reef system: a eurobraced, ultra-clear glass reef aquarium, a marine-spec cabinet, a sump, and Red Sea's matched lighting, filtration, circulation and monitoring, all run from the ReefBeat app. It holds 65 gallons in the display and 79.3 gallons in total. New for the G3+ generation, every REEFER MAX now ships with the ReefControl Pro controller, a ReefSense pH/Temp probe and the ATO Module.

What's New in G3+

• ReefControl built in: the ReefControl Pro Controller (supports up to 7 ReefSense probes and sensors plus two 12V DC devices) with the ATO Module, an automatic top-off with an integrated temperature monitor, plus a ReefSense pH/Temp probe
• Redesigned flow system that Red Sea rates at up to 50% more water circulation
• ReefGate high-precision gate valve on the downflow pipe for easy flow adjustment and near-silent operation
• Enlarged rectangular downflow inlet that reduces turbulence for quieter running
• Removable surface skimmer in the central overflow box and improved return outlets
• Jet-black eurobracing on ultra-clear glass bonded with euro-silicone

What's Included

• REEFER 300 G3+ aquarium in ultra-clear glass with jet-black eurobracing
• Marine-spec plywood cabinet (Black or White) with leveling feet, epoxy-painted doors and stainless steel hinges
• Sump, ReefMat ready, with an adjustable-height skimmer chamber and refugium-ready layout, plumbed with ReefGate piping
• ReefControl Pro Controller
• ReefControl ATO Module (auto top-off with integrated temperature monitor)
• ReefSense pH/Temp probe
• 2 x ReefLED G2 115 LED lighting (230W total)
• REEFER DC 300 protein skimmer (265 gph water flow, 130 gph air flow)
• ReefRun G2 4000 DC return pump (530-1,060 gph)
• 2 x ReefWave 25 wave pumps (1,980 gph each)
• ReefMat 500 automatic filter roller
• 1 micron filter bag
• 1 filter media cup
• Slide-out Control Panel 60

Specifications

Choose Your Stand Color

The REEFER MAX 300 G3+ is available with a Black or White marine-spec cabinet. Select your color above.

Explore More

Compare the Red Sea REEFER 300 G3+, the same tank without lighting and equipment, browse every Red Sea product, or shop our saltwater range for salt, rock and reef care.

Frequently Asked Questions

Is this really plug-and-play?
Yes. The REEFER MAX 300 G3+ comes with lighting, skimmer, return pump, wave pumps, filter roller, controller and ATO matched to the system. You assemble the cabinet and tank, connect the plumbing, add rock, salt and water, and set everything up in the ReefBeat app.

How is it different from the REEFER 300 G3+?
It is the same aquarium, cabinet and sump. The REEFER 300 G3+ leaves out the lighting, skimmer, return pump, wave pumps, ReefMat and pH probe so you can pick your own gear, and it comes with the ReefControl Lite controller.

What changed from the G3?
The G3+ adds the ReefControl controller and ATO Module, a redesigned flow system, the ReefGate gate valve on the downflow, a larger rectangular downflow inlet for quieter running, and a removable surface skimmer in the overflow.

Can I pick it up or have it delivered?
This system is set up for in-store pickup at our shop. If it is not currently in stock we can bring one in as a special order.