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Hydor Nano Protein Skimmer - Slim Skim


Item #: HD00771

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The HYDOR SLIM-SKIM NANO INTERNAL SKIMMER™ was developed for Nano and Mini Reef use and for aquariums up to 35 gallons. It is compact and easy to position with a magnet suction cup support.

Includes a special grid for surface water intake, multi-venturi impeller technology, low power consumption, adjustable air control and foaming level. Footprint is 12" High, 3 1/8" Square

  • Adjustable air control
  • Includes grid to protect fish from injury
  • Equipped with anti-vibrations system to reduce noise
  • Energy efficient
  • Adjustable collection cup
  • Includes Patented Magnet-Suction Cup mounting system
  • Small footprint for nano aquariums
  • Sleek, compact design
  • Aquarium Volume: 35 Gallons (140 Liters) for normal bioloads; 25 Gallons (60 L) for heavy bioload
  • Power Consumption: 4 Watts
  • Footprint: 3 1/4" x 4" (8 x 8.5 cm)
  • Min. Water Depth: 11" (28 cm)
  • Skimmer Height: 12" (30 cm)

Manufacturer information

Hydor has been producing a comprehensive range of equipment for aquariums and ponds since 1984 and offers the best in high-technology for the creation of a living ecosystem at home. The factory has developed thanks to the engineering competence of its founder and its continuous growth is based on the investment it has made in research and the development of innovative technical appliances. A competitive and dynamic structure of more than 150 employees regularly engages in the implementation of products which meet the demands of 50 nations and keep pace with the evolution of the world markets. The global quality is not a simple working method but a daily expression of mind.

5 Stars


Reviewed on
July 28, 2020

Yes, I would recommend this.

Great skimmer

Pros: Works amazing

Cons: Difficult set up

It is absolutely perfect for my nano tank.

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Reviewed on
August 18, 2018

No, I would not recommend this.

Not so great

Pros: Quiet. Disassembles easily.

Cons: Barely pulls anything from tank. Dissembles way too easily—falls apart every time you bump it.

After two or so years of dissatisfaction, I’ve replaced my Hydor Koralia Skimmer. Would never go back.

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Reviewed on
March 23, 2018

No, I would not recommend this.

Will not work in a IM Fusion 40

Seems like a decent skimmer but it will not work in a Innovative Marine Fusion 40 due to the water levels in the back

Was this review helpful? 0 1


Reviewed on
February 20, 2018

Yes, I would recommend this.


very good product

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Reviewed on
July 29, 2017

Yes, I would recommend this.

WOW! Works great!

Pros: Size, reliability, set up, noice level, functionality

Cons: None

I waited awhile to write a review about this skimmer but all I really need to say is wow! I have it running in the back of my new Nuvo Fusion 30L aquarium. It fits perfectly in the back of the tank and barely is visible above the tank line. Set up was easy, the skimmer is quiet. There have been no microbubbles problems and the affluent that the skimmer is producing is very concentrated!

Was this review helpful? 3 0


Reviewed on
August 08, 2016

Yes, I would recommend this.

Works great!!!

First skimmer i have ever used and i love it. Was easy to assemble and started producing skim within a few hours. I now dump the collection cup everyday. Spent a lot of time reading mixed reviews about this product and dont understand any of the negative ones. I installed it in the first chamber of a biocube 29. Fits perfect after pulling off the rear magnet holders off with pliers and Cut a piece of pvc pipe to fit underneath to set height . Fits perfectly snug. Make sure to watch the utube video on how to assemble and Only use instructions on setting height. Open airline wide open no need to ever adjust. Great skimmer!!!

Was this review helpful? 2 0

larry grant

Reviewed on
November 20, 2015

Yes, I would recommend this.

Great Skimmer

This skimmer is quiet and slim! I have a 40 gallon reef-less tank with 7 fish and it started foaming on day 2! Nitrates are lower but not totally gone. Water changes are less frequent now.

Was this review helpful? 4 0

michael birdsall

Reviewed on
July 07, 2014

Yes, I would recommend this.

Works okay

It's an average skimmer at best. I wouldn't get another one

Was this review helpful? 0 3

tim s.

Reviewed on
June 13, 2013

Yes, I would recommend this.

Works as advertised

I have this running on a 27 cube that I've just set up. Thought about an Aquamaxx hang-on, but I didn't want to break the bank with what is for me a second "office" tank. I've been pleasantly surprised by the slim skim nano. It's easy to set up, very, very quiet, looks nice in the tank, and, most important, it skims, creating dry brown foam. So far, it's more than enough for this size tank with a light-mid bioload.

Was this review helpful? 5 0

stefan kolev

Reviewed on
February 25, 2013

Yes, I would recommend this.


2+ Years and still going. I have it on a 20 gallon long reef with a 3 gallon sump. Very easy to set up clean and adjust. Get one

Was this review helpful? 0 1

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