REEFER G3+ XL 300 Red Sea

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Discover the Red Sea REEFER G3+ XL 300, a 300 L reef aquarium with ReefControl Lite, smart automatic top-off, ultra-clear glass, and ReefMat-ready sump. Available with a black or white cabinet, in standard or Deluxe version with 2 ReefLED 115s.

REEFER G3+ XL 300 Red Sea – Next-generation 300 L reef aquarium

The Red Sea REEFER G3+ XL 300 is a premium reef aquarium designed for marine aquarium enthusiasts who want to combine aesthetics, technology, and performance. With a total volume of 300 L, a 246 L display tank, and a 54 L sump, it offers a complete, elegant, and scalable setup for keeping marine fish, corals, and invertebrates.

This new REEFER G3+ generation now includes the ReefControl Lite controller and the new Reef ATO for ReefControl, making it possible to automate evaporation top-off while preparing the aquarium for future technological upgrades.

The REEFER G3+ XL 300 also features a Jet-Black upper frame, high-quality European silicone, optimized water flow, and a ReefMat-ready technical sump.

What’s new in the Red Sea REEFER G3+ XL 300

ReefControl Lite: an included smart controller

The REEFER G3+ XL 300 comes with ReefControl Lite, a smart solution that centralizes the management of certain aquarium equipment.

This new generation replaces the previous standalone top-off management with a single controller, capable of handling the new Reef ATO system and later accommodating compatible probes and sensors.

ReefControl Lite works with the Red Sea ReefBeat app, allowing you to view available information and manage compatible features from a smartphone.

Reef ATO for ReefControl: integrated automatic top-off

The new Reef ATO for ReefControl replaces the ReefATO+ found on previous generations.

This device automatically compensates for water evaporation in the aquarium by adding RO water when needed.

Thanks to its direct connection to the ReefControl Lite controller, the system provides centralized top-off management without requiring a separate dedicated controller.

An expandable system with ReefSense sensors

The ReefControl Lite is designed to support the evolution of the reef setup.

It allows for the later addition of compatible ReefSense digital probes and sensors to expand the aquarium monitoring functions.

Depending on the accessories installed, the user can access measurements, view available history, and receive notifications through the connected Red Sea ecosystem.

Jet-Black frame and high-quality European silicone

The REEFER G3+ XL 300 features a new Jet-Black upper frame, giving the aquarium a modern and elegant finish.

This finish is paired with high-quality European silicone, selected to meet Red Sea’s aquarium manufacturing standards.

Technical specifications of the REEFER G3+ XL 300

Aquarium dimensions and water volumes

The REEFER G3+ XL 300 is 90 cm long and 57.5 cm deep, providing a generous footprint for creating a balanced, structured, and open reefscape.

Its 55 cm height makes aquascaping and coral viewing easier. The total height of the setup with cabinet reaches 142 cm, excluding lighting.

Optimized and quiet water flow

Improved hydrodynamic design

The REEFER G3+ XL 300 benefits from the improved hydraulic system developed for Red Sea’s G3 generation.

The plumbing has been redesigned to reduce head loss and improve circulation between the aquarium and its sump. According to Red Sea, this design can provide up to 50% more circulation in comparable setups.

ReefGate valve and optimized overflow

The high-precision ReefGate valve allows fine adjustment of the drain flow to the sump in order to reduce water noise.

The overflow system also includes a removable surface skimmer for easier maintenance, as well as curved return nozzles that promote better water distribution.

An expandable ReefMat-ready sump

The 54 L sump of the Red Sea REEFER G3+ XL 300 brings together the main technical equipment needed for a reef aquarium to function.

It includes a removable mechanical filtration section, allowing a compatible Red Sea ReefMat automatic filter to be installed later.

The system also allows for the installation of a skimmer and other filtration accessories suited to the aquarium’s volume.

This design makes maintenance easier, improves equipment organization, and allows the setup to evolve over time.

A robust cabinet and an ultra-clear glass aquarium

The REEFER G3+ XL 300 features ultra-clear glass panels that provide excellent transparency and especially enhance the natural colors of corals and marine fish.

The cabinet is built from a robust laminated marine plywood construction, with adjustable feet for precise leveling.

Its epoxy-finished doors and stainless-steel hinges are designed to meet the demands of marine aquarium use.

The cabinet is available in black or white, allowing it to blend harmoniously into different interior styles.

Available options for the REEFER G3+ XL 300

The Red Sea REEFER G3+ XL 300 is offered in four configurations, allowing you to choose the cabinet color and whether or not LED lighting is included.

REEFER XL 300 with black cabinet

The REEFER G3+ XL 300 black cabinet version combines a 300 L reef aquarium with an elegant black cabinet. This configuration is ideal for aquarists who want to choose their own lighting and additional equipment.

REEFER XL 300 with white cabinet

The REEFER G3+ XL 300 white cabinet version offers the same technical features with a modern, bright white cabinet. It allows the aquarium equipment to be fully customized to suit the needs of the setup.

REEFER XL 300 Deluxe black cabinet with 2 ReefLED 115s

The REEFER G3+ XL 300 Deluxe black includes a black cabinet and two Red Sea ReefLED 115 light fixtures, along with their matching mounting system.

This Deluxe version provides LED lighting designed for reef aquariums, covering the full 90 cm length of the tank, with settings accessible through the ReefBeat app.

REEFER XL 300 Deluxe white cabinet with 2 ReefLED 115s

The REEFER G3+ XL 300 Deluxe white combines a white cabinet with two ReefLED 115s and their mounting system.

This configuration offers a harmonious setup with lighting dedicated to coral growth and enhancement.

Why choose the Deluxe version with ReefLED 115?

The REEFER G3+ XL 300 Deluxe versions provide a Red Sea lighting system specifically suited to reef aquariums right out of the box.

The ReefLED 115 is designed to promote coral growth while enhancing their fluorescent pigments. Two units allow even lighting across a 90 cm aquarium.

Compatible with the ReefBeat app, it allows you to customize lighting cycles and program smooth transitions between the different phases of the day.

The standard versions, on the other hand, are an excellent solution for aquarists who want to use their own lighting equipment.

An aquarium suited to marine fish and corals

The REEFER G3+ XL 300 offers a comfortable volume for creating a reef aquarium with soft corals, LPS corals, or SPS corals, provided suitable equipment is used.

Its 57.5 cm depth and 90 cm length make it possible to create rockscapes with different levels and to establish varied placement zones for corals.

It is also suitable for many small and medium-sized marine fish species, taking into account their behavior, needs, and compatibility.

Why choose the Red Sea REEFER G3+ XL 300?

The Red Sea REEFER G3+ XL 300 combines the hydraulic performance of the G3 generation with the new smart management possibilities offered by ReefControl Lite.

Its integrated automatic top-off system, ReefMat-ready sump, ultra-clear glass, and robust cabinet make it an ideal base for creating an elegant and scalable marine aquarium.

Available with a black or white cabinet, in standard or Deluxe with 2 ReefLED 115s version, it suits both custom reef projects and setups looking for a Red Sea lighting solution integrated from the start.

Discover the REEFER G3+ XL 300 Red Sea at Récif At Home and choose the ideal configuration to bring your reef aquarium to life.