Reef Octopus

Regal 250EXT 10" Recirculating Protein Skimmer (VarioS)

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BRS Recommended for tanks up to:

Heavy Bioload (Most Common) - 250 Gallons

Medium Bioload - 375 Gallons

Light Bioload - 550 gallons

Reef Octopus Recirculating 10" Protein Skimmer from Reef Octopus - with a controllable VarioS DC pumps to process more or less water, depending on your aquariums needs.

  • Footprint - 18.1" x 15.3″
  • Height - 26.4″
  • Requires Feed Pump*

Feed Pump Suggested Flow Rate - 900 - 1200 GPH


Reef Octopus Regal Skimmers now incorporate the new VarioS S pinwheel series of pumps. The new pumps are DC powered allowing for several advantages over traditional AC style pumps. The VarioS pumps can be fully controlled by a 3rd-party controller or through the included control unit. With 5 different preset speeds, and multiple feed modes, you can fine-tune Regal skimmers for superior performance on your particular system.


Recirculating skimmers can be employed either externally or internally (in-sump) and are usually a bit more efficient than the traditional in-sump skimmer. They do require a bit more space and height generally but the ability to fine tune, the feed pump, recirculating pump, and discharge lets you create the perfect skimmer for your tank needs. When skimmers are mounted externally, we frequently suggest a Waste Collecter, however, Reef Octopus has thought one step farther than the competition integrating a float switch into the collection cup, protecting from potential messy overflows.


Note: A feed pump is required that can flow around 1.5 - 2 times the systems volume. We suggest a pump around 600-1000 GPH, and particularly like the VarioS 6 Controllable DC pump or Sicce Syncra Silent 5.0, we also highly recommend a gate valve to help control and fine tune the flow of water into the skimmer from the feed pump.


Filtration Handling

Well Stocked Tank - Rated up to 250 gallons

Medium Stocked Tank - Rated up to 375 gallons

Light Stocked Tank - Rated up to 550 gallons



  • VarioS-6 DC controllable pump
  • Apex Ready
  • Safety overflow float switch for cup
  • High quality cast acrylic
  • Hybrid Cone Shape
  • High volume air intake
  • Skimmer Drain for easy cleaning
  • Quiet operation
  • Solid construction
  • Easily removed collection cup
  • Detachable controller with waterproof union
  • 3rd-Party controller input (0-10V)
  • 2 year warranty on pump body
  • 1 year warranty on pump rotor (pinwheel impeller)
  • 1 year warranty on skimmer body


Skimmer Specifications:

  • Body Diameter: 10"
  • Neck Size: 5.5"
  • Foot Print: 18.1” x 15.3"
  • Total Height: 26.4”
  • Output Size: 50mm - 1.5”
  • Output Height: 8.85"


VarioS-6 S Pinwheel Pump Features:

  • Air Draw: 1200-2400 LPH / 42-84 SCFH*
  • Power Consumption: 35-70W
  • Voltage: DC 36V

*Aquarium set up will determine air and water results.


What's Included?

  • Regal 250 EXT Protein Skimmer
  • VarioS-6 S Pinwheel Pump
  • VarioS Control Unit
  • Skimmer Cup Float Switch
  • Output Gate Valve
  • Metric to Standard Adapter


Available Accessories

  • Neck Cleaner: CL-250
  • Neck Extension: NK-250


pdf Regal Skimmer Setup Guide


pdf VarioS Controller Quick Start Guide

More Information
UPC 6950291251794
Skimmer Type External, Recirculating
Capacity Light Bioload - Up to 550 Gallons
Medium Bioload - Up to 375 Gallons
Heavy Bioload - Up to 250 Gallons
Dimensions 18.1"L x 15.3"W 26.4"H
Diameter 10"
Output Size 1.5" (1-1/2 in.)
Air Draw 1200-2400 LPH
Flow Rate 528 GPH
Pump Model VarioS 6-S
Pump Rotor Type Pinwheel
Variable Speed Yes
Power Type DC
Power Consumption 35 - 70 Watts
Warranty 2 Year (pump body), 1 Year (pump rotor), 1 Year (skimmer body)
Additional Notes Feed Pump Required -- Suggested Flow Rate: 900 - 1200 GPH
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Product Questions

Is this skimmer Ozone safe and does it have a built in port for ozone input?
Question by: EdRitzer on Apr 16, 2022, 4:04 PM
Hey there,
Thank you for reaching out to us. While we highly recommend using an ozone generator, this skimmer is safe for ozone. It does not have an ozone specific port.
Answer by: Matt Lucero (BRS Staff) on Apr 21, 2022, 9:04 AM