Red Sea

RSK 600 Reefer Internal Protein Skimmer

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Protein Skimming Reinvented 

Efficient  |  Quiet  |  Ergonomic


Red Sea Recommends for tanks up to:

Light Bioload - 450 gallons

Medium Bioload - 300 gallons

Heavy Bioload (most common) - 150 gallons


Red Sea Reefer Internal Protein Skimmers are designed with the hobbyist needs in mind. From quiet rubber feet, a robust air silencer, and not to mention the FoamView window with built a built-in manual neck cleaner, all which are focused towards easier maintenance along with a quieter reef tank. Starting at the top, Red Sea's Reefer Skimmers now include a built-in neck cleaner that can be manually turned to remove any build-up from the walls of the neck, while the integrated FoamView window lets you see how the foam is collecting in the neck. Along with the included cup-drain tube, emptying the collection cup is only requires a turn of a valve, and is also super easy to connect to an external waste collector. Moving down, every Red Sea Reefer Skimmer includes a Sicce PSK pump for enhanced performance and reliability that pushes a balanced amount of air and water through the hydrodynamically efficient bubble diffuser setting them up for a turbulent free ride into the collection cup. 

  • Integrated Manual Neck Cleaner
  • High Flow Air Silencer
  • Simple to Maintain and Disassemble
  • Easy to Tune Water Level Control
  • Vibration Reducing Feet and Connectors
  • Includes Collection Cup Drain Line & Valve
  • Multiple Pump Orientations for Sumps with Tight Spaces



Footprint* - 10.2" x 9.4" or 11.4" x 8.3"

Height - 22"

Recommended Water Height - 7" - 9"

Air Flow - 750 LPH (195 GPH)

Water Flow - 1500 LPH (400 GPH) 


*Footprint can be changed depending on the pumps orientation inside of the skimmer body


What's Included?

1x RSK 600 Reefer Protein Skimmer Body

1x RSK 600 Reefer Collection Cup with Neck Cleaner

1 Meter RSK 600 Reefer Drain Hose with Valve

1x RSK 600 Reefer Air Silencer with Pump Feed Hose

1x Sicce PSK Pump


Owners Manual Owners Manual

More Information
UPC 730773505067
Skimmer Type In-Sump / Internal
Capacity Light Bioload - Up to 450 Gallons
Medium Bioload - Up to 300 Gallons
Heavy Bioload - Up to 150 Gallons
Dimensions 10.2"L x 9.4"W x 22"H or 11.4"L x 8.3"W x 22"H*
Rec. Water Level 7" - 9"
Air Draw 750 LPH
Flow Rate 400 GPH
Pump Model Sicce PSK-1000
Pump Rotor Type Needlewheel
Variable Speed No
Power Type AC
Power Consumption 16 Watts
Power Cord Length 7 Feet
Additional Notes *Footprint can be changed depending on the pump's orientation inside of the skimmer body
Pump Included Yes
Gallons Per Hour 300 - 600 GPH
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Product Questions

If I wanted to replace this pump with a DC pump which one would you recommend that will fit in the same space?
Question by: atienne on Jun 28, 2022, 5:17 PM
Hey There, thanks for the question. Because this pump and skimmer are specifically designed for each other I do not believe there is a compatible DC pump you can add retro fit.
Answer by: James Johnson (BRS Staff) on Jun 30, 2022, 2:29 PM
Would this fit in the skimmer section of a reefer 425 xl with v3 sump?
Question by: Roger Barrios on Feb 6, 2020, 10:44 PM
Hey there,

Yes it would fit in that skimmer section of the sump.

Take care
Answer by: Thomas Billington on Feb 7, 2020, 7:35 AM