Red Sea Reefer 300 XL

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Product Overview

Red Sea’s REEFER series of reef systems provide advanced hobbyists with a solid foundation for building a fully featured reef or marine aquarium.  The REEFER XL includes four models that give you the freedom to create more expansive, intricate, and diverse reefscapes without the constraints of the smaller tanks. All four XL models are 57.5cm (22.6″) wide and 55 cm (22″) high (excluding XL 200, which is 53 cm/21″ high). They differ in length and are available in 4 sizes from 60cm (24″) long/200 liter (53 gal) capacity up to 150cm (59″) long/525 liter (140 gal). All the REEFER XL models now feature a laminated, plywood marine-spec cabinet for greater water resistance with adjustable feet for perfect leveling on any surface.

The REEFER series combines a contemporary, rimless, ultra-clear glass aquarium with a stylish cabinet and a comprehensive water management system including a professional refugium ready sump with integrated automatic top-up and Red Sea’s unique silent down-flow system.

The REEFER series is designed for ease of operation while enabling the advanced hobbyist to install an unlimited choice of lighting, filtration, circulation, and controllers to create a uniquely customized system.

Features include:

  • Rimless, ultra-clear, beveled edge glass aquarium
  • Elegant, marine-spec, laminated, plywood cabinet with adjustable feet
  • Assembly-ready piping – no gluing required
  • Professional refugium ready sump with adjustable height skimmer chamber *
  • Silent, regulated down-flow system with emergency overflow
  • Integrated automatic top-up system with reservoir
  • RO liter reservoir that can be slid aside when necessary for pump maintenance. (not for 3XL900)
  • Micron filter bags and filter media cups *


  • Display tank length: 90cm / 36″
  • Display tank width: 57.5cm / 22.6″
  • Display tank height: 55cm / 22"
  • Total system height: 142cm / 56″
  • Display tank water vol: 246L / 65 gal
  • In-cabinet sump water vol: 54L / 15 gal
  • Total system water vol: 300L / 80 gal
  • RO reservoir vol: 12.3L / 3.2 gal
  • Front glass thickness: 12mm / 1/2”

* Note: not all features are available on REEFER™ 170/XL200, the color of interior cabinet and piping may vary.


For Tank Only Purchase:

- Call 803-731-4004 m-f 11-6 sat 11-4 sun 130-4 to schedule pick up.


For Complete Kit Purchase:

- Call 803-731-4004 m-f 11-6 sat 11-4 sun 130-4 to set up delivery.

- We are now delivering the Red Sea Reefer 300 XL Aquarium within 50 miles of Fishy Business.


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