Red Sea

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  • Red Sea Reefer skimmer



    • Ergonomic diffusion chamber evenly disperses the fine bubbles created by the PSK pump across the skimmer cone, without reducing air or water flow.
    • Quiet operation, with vibration absorbing components and a large air intake silencer.
    • 3 assembly options for flexible positioning of the pump inlet and regulation valve, according to your sump.
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  • Red Sea Reefer XL425/XL525


    Red Sea REEFER™ XL Features: 

    • Rimless, ultra-clear, beveled edge glass aquarium
    • Elegant Marine-Spec cabinet
    • Professional sump with constant height skimmer chamber and micron filter bags
    • Silent, regulated down-flow system with emergency overflow
    • Integrated automatic top-up system with reservoir
    • Assembly-ready piping – no gluing required

    The REEFER™ XL models are 7.5cm/3″ wider in comparison to the REEFER™ 350/450 systems and have proportionately larger sumps with an extra 3cm / 1.2″ water height in the skimmer chamber.

    REEFER™ XL Specification

    REEFER™ aquariums are constructed from thick, beveled-edge, ultra-clear glass to support their elegant and modern rimless design.


    red sea reefer 350 marine aquarium system

    The aquarium sits on a recessed base that “floats” it above the cabinet, which seamlessly follows the contour of the glass.

    Red Rea reefer marine aquarium system

    The marine-spec laminated cabinet that houses the sump and vented space for chillers, is smartly finished with weatherproof, epoxy-painted doors. Offered with black or white exteriors, all cabinets have a black interior which maintains its clean appearance over time.

    REEFER™ Water Management System

    Red Sea REEFER marine aquarium system - Water managment system - regulated downflow system

    Removable surface-skimming combs surround the top of the centrally located overflow box that houses the downpipe, sump return pipe and the discreet multi-directional “eyeball” return outlet nozzle.

    Red Sea REEFER marine aquarium system surface skimmimg combs

    In the event of a blockage in the regulated downpipe, an additional emergency overflow pipe provides an unrestricted free flow of aquarium water directly to the sump.

    On entering the sump the water passes through a 225 micron mechanical filter bag, before entering the filtration compartment that maintains a constant water height, making it suitable for all skimmers and other reactors.

    Red Sea Reefer marine aquarium system - filtration system

    In order to remove any air bubbles that may have escaped from the skimmer, the water passes through a bubble-stripping cascade on its way to the return pump chamber.

    To ensure a constant water level in the pump compartment, all REEFER™ sumps include an integrated automatic freshwater top-up unit,  guaranteeing a constant, stable water flow throughout the complete system.

    Supplied as a complete self-assembly kit, all pipe work is ready without the need for any gluing.

    Red Sea Reefer marine aquarium system - integrated automatic freshwater top-up unit

    REEFER™ XL Series Technical Data


    REEFER™ XL Model
    Specification 425 525
    Main Features Ultra clear front and side glass
    Ultra clear front glass thickness (mm) 12 (1/2”) 15 (5/8”)
    Built in surface skimmer
    Integrated automatic top up system
    System Volumes Display tank water volume (L) 332 (88 gal) 409 (L108 gal)
    In cabinet sump water volume (L) 90 (24 gal) 116 (31 gal)
    Total system water volume (L) 422 (112 gal) 525 (139 gal)
    RO reservoir volume (L) 12 (3.2 gal) 16.5 (4.3 gal)
    System Dimensions Display tank length (cm) 120 (47″) 150 (59″)
    Display tank height (cm) 55 (22″) 55 (22″)
    Display tank width (cm) 57.5 (22.6″) 57.5 (22.6″)
    Total system height with cabinet (cm) 142 (56″) 142 (56″)
    Sump Dimensions Water height (cm) 27 (10.6”) 27 (10.6”)
    Skimmer chamber (cm) 49 x 34 (19.3”x13.4”) 49 x 48 (19.3”x19.3”)
    Pump chamber (cm) 49 x 15 (19.3”x6”) 49 x 15 (19.3”x6”)
    Return Pump 3/4” threaded hose barb – Pipe Int. Dia 25mm (1”) 25mm (1”)
    Recommended flow (lph)
    (pump not included)
    4000 (1060 gph) 4000 (1060 gph)


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  • RedSea Aiptasia-X


    Red Sea Aiptasia-X offering :

    • A unique adhesive material
    • Aiptasia does not retract during treatment
    • Does not affect water chemistry
    • Includes straight & angled applicator tips

    Red Sea Aiptasia-X kit Content

    The Aiptasia-X® kit includes a 60ml bottle of material plus an applicator set consisting of a syringe with two (straight and angled) lock-on applicator tips, enabling treatment of even the most inaccessible of anemones. The 60ml provided in the kit should be sufficient to treat approximately 100 Aiptasia anemones.

    No. of treatments:

    100 treatments (60ml bottle)

    Red Sea Aiptasia-X Package size/volume:

    Aiptasia-X kit 60ml (2.0 fl. oz.)*

    * The kits include a 3ml applicator with one straight applicator tip, and one curved one for hard-to-get Aiptasia.

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  • RedSea ReefLED 50 Arm Mount


    A universal mounting arm attaches firmly onto the rear wall of the tank and can be rotated from side to side during reefscaping or other tank maintenance. Suitable for tank widths from 36-51cm / 14″ – 20″ with glass thickness of 8-15mm.

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  • RedSea ReefLED 90 Arm Mount


    ReefLED individual mounting arms attach firmly onto the rear wall of the tank and can be rotated to the upright position during reefscaping or other tank maintenance. Available in 3 models that are suitable for tank widths from 46-70cm with glass thickness of 8-19mm.

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  • RedSea ReefLED Lighting



    • REEF-SPEC® light output for optimal coral growth and coloration
    • Homogenous light with a gentle shimmer
    • Reef-safe dual-channel color setting plus dedicated moonlights
    • ReefBeat® app for easy set-up, operation, monitoring and notifications
    • Anti-glare recessed lens
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  • RedSea Seawater Refractometer


    Main features of Red Sea’s Seawater Refractometer include:

    • Directly reads the absolute salinity of seawater at 25°C/77 0F  ( No need for seawater or temperature compensation factors)
    • Specifically designed for the ionic content of seawater (NSW) for more accurate salinity measurement (industry standard refractometers are calibrated for salt brine ).
    • Calibrated for seawater (NSW) at 25oC/77oF, the normal temperature range for reef aquariums
      (most standard refractometers are calibrated at 15oC/59oF ).
    • Easier to read, higher resolution display, focussed to the relevant range for reef aquariums of up to 40ppt
    • Includes Integrated Automatic  Temperature Compensation (ATC) for accurate measurement at standard ambient temperature.

    Red Sea’s Refractometer display

    The PPT scale on Red Sea’s Seawater refractometer is calculated using an algorithm for seawater and therefore will give a reading of the Absolute Salinity of seawater.

    The PPT scale on regular salinity refractometers are calculated using an algorithm for Brine. Using a Brine refractometer for Seawater will give an error of approximately 1.5ppt in the salinity reading.

    Red Sea’s Seawater refractometer red sea seawater refractometer. salinity test for saltwater aquariums
    Red Sea’s Seawater Refractometer display
    Typical Salinity Refractometer display

    About Salinity

    Salinity is a general term describing the concentration of salt in water. However, solutions of different type of salts have different refractive indexes.

    Brine is a solution of Sodium Chloride (table salt) that contains 2 chemical elements.

    Seawater contains approximately 70 chemical elements that include Calcium, Magnesium, Potassium etc. in addition to the Sodium Chloride.

    Seawater and Brine of the same salinity (i.e. the same weight of salt/liter) have different refractive indexes and will give different salinity readings if measured on the same refractometer.

    Refraction & refractive index

    All transparent materials such as liquids refract (distort) light.

    All transparent materials refract light differently and have what is called a “refractive index” which means how much a particular material distorts light.

    Different concentrations of the same liquid have different refractive indexes.

    The scale of a refractometer is calculated by using a mathematical algorithm that relates the measured refraction to its concentration for a specific liquid.


    Refractive index and temperature

    The refractive index of liquids change with temperature and therefore has a major effect on measuring salinity with a refractometer.

    The algorithm for defining the PPT (and S.G.) scale for a refractometer is calculated for a specific temperature.

    PPT readings from refractometers that are not calibrated for reef aquariums (i.e. 25oC) need to be adjusted according to a conversion table to give the actual PPT at the aquarium temperature. This is often a cause for misinterpretation of refractometer readings.

    For example, using a seawater refractometer calibrated at 20oC will give a PPT reading that is approximately 1-1.5ppt lower than the absolute salinity of the same water sample at the normal aquarium temperature of 25oC.

    Therefore, Red Sea’s Seawater Refractometer calibrated at 25°C/77 0F directly reads the absolute salinity of seawater with no need for temperature compensation factor)

    ATC – Automatic temperature compensation

    Temperature is probably the biggest cause of wrong readings with a refractometer. Calibration and testing of water samples should be done after the refractometer and water sample have equalized at the correct temperature.

    Automatic temperature compensation (ATC) compensates for a few degrees of difference between the ambient temperature and the calibrated temperature of the refractometer. Larger temperature variations will give an error of approximately 1.0ppt in the salinity reading.

    ATC does not adjust the PPT reading of a refractometer to the temperature of the aquarium!

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    Highly activated carbon for marine and reef aquariums

    Red Sea REEF-SPEC™ Carbon is the ultimate choice for marine & reef aquariums due to its unique technical characteristics.
    Red Sea REEF-SPEC™ Carbon’s granule size and its micro/macro porous structure, ensures a very high total adsorption capacity and rapid extraction of the specific organic pollutants that are found in Reef aquariums.

    REEF-SPEC™ Carbon has extremely low phosphate leaching and minimal ash content while also not affecting the pH of aquarium water.
    Red Sea REEF-SPEC™ Carbon needs replacing less frequently than carbons that are not reef-specific or are of a lower quality and represents an effective, cost-efficient solution for providing the very best water quality in marine & reef aquariums.

    Main features:

    • Rapid removal of organic pollutants
    • High total adsorption capacity
    • Ultra-Low phosphate output
    • Ultra-Low ash content
    • Suitable for Marine & Freshwater
    • Filter Bag included( 250g, 500g, 1000g)
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