VarioS-2 Controllable DC Pump (792 GPH) - Reef Octopus

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VarioS-2 Controllable DC Pump (792 GPH) - Reef Octopus

80% Recommend this to a friend (4 of 5)

SKU: 210229
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Quick Overview

Reef Octopus VarioS DC pumps give you enhanced performance and precise control of flow through your aquarium's reactors, sump, or closed loop system.

With complete control through the Varios Controller, you can control the flow of the pump, enter feed modes (15 or 60 minutes), add a safety float switch (included), or simply connect it to a third party controller like an Apex.

Max Flow: 792 GPH

Max Head: 13 FT

Dimensions: 4.75" W x 5.7" L x 4" H


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Product Questions

Can this be turned down to run approximately 300 gph through a Pentair 40w UV unit and is it self priming if used as external pump or need to mounted below sump level so starts with water in pump.
Question by: Bryan Smith on Jan 31, 2017 10:15:00 AM
Great question! This has 5 presets for flow adjusting the flow. The max flow rating is 792gph and I would guess that the lowest may be around 100-150gph. Unfortunately, the manufacturer doesn't list the exact flow rates at each preset, so we are left to estimate. :-)
Answer by: Randy (Admin) on Jan 31, 2017 11:55:00 AM
Can I use this pump on the SRO XP2000 8" Skimmer? It's an older skimmer with the bubble blaster hy2000s that has gone bad. Can this replace the pump?
Question by: Frank Patano on Jan 18, 2017 12:07:00 PM
Hey there! Unfortunately this pump cannot replace the pump for that skimmer. It is a return/utility pump that utilizes a different impeller than a skimmer pump and also does not have a venturi to allow an air intake line into the pump volute. For proper skimmer pump replacements, you would have to check out CoralVue listed in the contact info below! :-)

CoralVue (Reef Octopus. Elos, Maxspect, AutoAqua, Coral Rx, Reeflo, Waveline) - (985) 781-9078
Answer by: Randy (Admin) on Jan 19, 2017 5:25:00 PM

Full Details

Efficient - Safe - Reliable

5 Flow Settings - Precise control of the pump for any application

True Slow Startup - Easy on equipment and saves energy

Detachable Controller - Waterproof union

Float Switch - Creates a new standard for pump safety

Rotatable Volute - Rotates in 90-degree intervals

Integrated Memory - Keeps programming even during power outages

Feed Mode - Shuts down for 15 or 60 minutes

Submersible or External - Perfect as a return, closed loop, or reactor/filter pump.

Super Quiet Operation - Perfect for places where any noise is not tolerable.



The safe and energy efficient VarioS DC pump now include the new VarioS controller giving you more control. With 5 different energy saving speeds and two feed modes, the controller lets you know what your pump is doing at a glance.


Third Party Control

There is a dedicated port on the VarioS controller letting you directly connect your VarioS pump to any third party controller through a 0-10V reference port. Controlling your pump through a controller like an Apex lets you create your own flow profiles which are particularly handy for closed loop systems creating a random flow throughout the aquarium.



Having a pump that lets you directly attach a float switch has several advantages. The float can let you set high or low points in your sump, skimmer cup, or display tank that will shut the pump off when the float is activated.

The VarioS controller includes a waterproof 3-conductor union that connects to the pump creating a safe and detachable connection.



  • Input: 1" Slip PVC
  • Output: 1" Slip PVC or 1/2" - 3/4" Stepped Barb
  • Max Flow: 792 GPH
  • Max Head: 13 FT
  • Wattage: 25W
  • Voltage: 24V DC
  • Dimensions: 4.75" W x 5.7" L x 4" H
  • Cable Length: 6 FT
  • Pump Warranty: 2 Years
  • Rotor Warranty: 1 year


Whats in the Box

  • Varios-2 Controllable Pump
  • Varios Controller
  • Power Supply
  • Float Switch
  • Input Union
  • Output Union
  • 1/2" - 3/4" Stepped Barb
  • Protective Intake Screen


Note: VarioS pumps are not pressure rated, and therefore not recommend for high head pressure applications or equipment like Becket and downdraft skimmers.


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5 Items

  • Awesome little pump By Andrew on 4/20/2017

    I have this pump in a 20g sump on a 40g breeder tank. I'm running it about half speed and it is super quite and runs and looks great. I love this little pump. Looking to buy another one soon.
  • So impressed I bought another one By Bob on 3/19/2017

    I plumbed this externally into a 65 gallon set-up with a 20 gallon sump. It's quiet, the controller is simple and offers great functionality. After a month of use I've found that I usually leave it set at 2 out of 5 and just dial it up occasionally to "stir" things up with some extra flow. I like it so much I'm ordering another for my 90 gallon display
  • Great pump By radar_17 on 1/13/2017

    I've only had it for a couple of weeks, but I like it. I immediately noticed a difference in the noise level... the pump is far less noisy than the "quiet" AC pump it replaced. In a completely quiet room you can hear a faint hum, but with any background noise at all it disappears. Being able to control is a nice feature as well, don't have to use a valve. Just a push of a button decreases or increases flow. So far so good... we'll see about longevity.
  • Runs quiet and overall very happy By Landon on 8/23/2016

    I finally decided to upgrade to a DC pump because my running noise was too loud with my Lifeguard Quiet One pro 2200. I chose this Reef Octopus Varios-2 because it was in my (under $200) price limit and the reviews for the Waveline DC pumps were not all that positive. I also liked the added bonus of the float switch which I installed on my display tank and after testing it I realize what an important feature this is...You know, in case my RBTA goes for a stroll and blocks my overflow. I have a 55Gal tank with a 20Gal sump and I know this pump is overkill (I only have it set on the 2 out of 5 speed) but it allows me to upgrade and I couldn't be happier with it! It's sooooo much quieter that my old one, I even took before and after videos and the noise difference is extremely noticeable. I have only been running it for a week now, so I can't speak to it's longevity, but I can see that it was built well and I'm completely satisfied so far!
  • Excellent pump so far! By ae86oni on 8/20/2016

    I have the skimmer version of the VarioS 2 pump. It is awesome so far! Dead silent and pulling skimmate like a boss! Can't even hear the thing running. Using it as a replacement for the 2x failed Sicce Syncra Silent 2.0 on my Aquamaxx skimmer (the Shark 2.0 pump as they call their modified version)
    Will also be replacing the MAG 7 return pump with one of these very soon! The aquarium will finally be quiet.