Reef Octopus

NS80 Hang-on-Back Nano Skimmer

In stock
Out of stock

Discontinued by Bulk Reef Supply
- +

Great nano skimmer from Reef Octopus for use in sumps, nano tank overflows and display aquariums.

  • Rated for aquariums up to 25 gallons
  • Powered by OTP 200s Pinwheel Pump
  • Small footprint
  • Mounting bracket included for easy positioning
  • Collection cup is easy to remove to empty


Well Stocked Tank - Rated up to 10 gallons

Medium Stocked Tank - Rated up to 15 gallons

Light Stocked Tank - Rated up to 25 gallons


More Features:

  • Bubble diffuser
  • Air silencer
  • Easily control water level with raiser pipe



  • 1 year warranty on pump
  • 1 year on skimmer body
More Information
UPC 6950291251817
Skimmer Type In-Sump / Internal, Hang On Back, Nano
Capacity Light Bioload - up to 25 gallons
Medium Bioload - up to 15 gallons
Heavy Bioload - up to 10 gallons
Dimensions 4"L x 2.4"W x 11"H
Diameter 2"
Max Tank Thickness 2 in.
Flow Rate 52.8 GPH
Pump Model OTP-200S
Pump Rotor Type Pinwheel
Variable Speed No
Power Type AC
Power Consumption 5 Watts
Warranty 1 Year
Additional Notes This skimmer has a bracket to hang on the rim of your tank, but the skimmer body needs to be placed internally on the inside of your tank with the pump submerged underwater
Pump Included Yes
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Product Questions

Will this fit in the back compartment of the nuvo 10?
Question by: Christopher on Nov 7, 2021, 4:36 PM
No, it will not fit in the back of the Nuvo 10.

Answer by: Matt Lucero (BRS Staff) on Nov 8, 2021, 2:33 PM
How far under the water does the skimmer need to be? Also, how high up should the bubbling be before reaching the collection cup? Currently I have the bubbling just below the collection cup, it isn't raising up the cone yet. The tank is fairly new and still clean so no protein has been removed yet.
Question by: Dean on Dec 4, 2016, 8:37 PM
Great question! You won't see much, if any, skimmate production if there is no bioload. Once your tank is stocked with fish and you are actively feeding them, then you will begin to see the skimmate. :-)
Answer by: Randy on Dec 19, 2016, 1:25 PM
I have a 10g 20in long 12.5in high 10in wide tank. Would this work for this tank?
Question by: Daniel Ksel on May 12, 2016, 4:10 PM
Great question!
This will be around 10" tall with cup and will work great on your tank. Feel free to let us know if you have any further questions!
Answer by: Connor on May 17, 2016, 4:50 PM
I have a shallow 20 gallon tank, would this fit? It doesn't give measurements but the tank is 12" tall
Question by: Damon on May 2, 2016, 10:34 AM
Great question!
The total height will be 11 and certainly will work well on a 12" tall tank.
Answer by: Connor on May 3, 2016, 6:47 PM
I recently purchased one of these skimmers. The collection cup has an outlet to run tubing to an external collection container. There is nothing in the manual that states the tubing size though. What tubing size do you recommend for use with an external collection container?
Question by: Eric on Apr 10, 2016, 10:27 PM
Great question!
The tubing required will be 1/4" ID (3/8" OD typically) Feel free to let us know if you have any further questions!
Answer by: Connor on Apr 14, 2016, 1:49 PM
Yes I have a shallow tank of 7" in height wondering if I could still hang this skimmer? How high is the pump? How tall is the whole skimmer? And if I can use it would it work properly since a lot of the skimmer mite be sticking out of the tank?
Question by: Jovani on Feb 2, 2016, 8:04 AM
Great question!
This skimmer would not work well as this would not work on a height of 7" height. If the tank is small enough under 25 gallons we would recommend passing on the protein skimmer and instead performing larger weekly water changes. Feel free to let us know if you have any further questions!
Answer by: Connor on Feb 24, 2016, 4:14 PM
Im getting conflicting answers....can I hang this on the back of my aquarium outside of the water* like larger HOB units?
Question by: Matt on Sep 9, 2013, 2:04 PM
Hey Matt,
The bracket itself attaches to the back rim of the aquarium but the skimmer body itself must be situated inside of the tank.
Answer by: Bulk Reef Supply on Sep 9, 2013, 2:04 PM