Tunze Turbelle Nanostream 6025 (740 GPH)

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  • Tunze Turbelle Nanostream 6025 Flow Dynamics

Tunze Turbelle Nanostream 6025 (740 GPH)

88% Recommend this to a friend (7 of 8)

SKU: 202100

reg. $55.99

Special Price: $39.19

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Quick Overview

Why does BRS recommend this?

Tunze Stream pumps are some of the quietest pumps for the price.  We have used these pumps in multiple tank builds and have never been disappointed.  They are not necessarily the cheapest AC powered pumps on the market, however they are very quiet, can be pointed in any direction, and have one of the industry’s best warranty and customer service through Tunze USA. 

German-made Tunze powerheads are one of the best high flow powerheads available. They are smaller and can be hidden in the aquarium easier than competing brands. Tunze pumps can be configured in a wide range of positions to target any area of the tank.

  • For aquariums from 10-55 gallons

  • Flow rate: 740 GPH

  • Energy consumption: 5W

  • Voltage/frequency: 120v

  • Cable length: 78.7”

  • Diameter: 2.7”

  • Output diameter 1.5/.59”


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Full Details

Manufacturer's Manual

Tunze pumps are excellent high flow powerheads for a number of reasons

  • They are the smallest pumps available and easy to hide.
  • They rotate to a wide range of angles for targeted flow.
  • They consume less power.
  • Available accessories such as the Tunze Rock and Controllers make them even more user-friendly.
  • Excellent warranty and customer service.

High flow is very important to maintaining a thriving healthy aquarium. Aquariums with poor flow can experience a number of easily avoidable health issue. Using high flow powerheads in your aquarium will:

  • Significantly decrease the risk of algae outbreaks.
  • Keep waste and particles suspended longer so skimmers and filters have a better chance of removing them.
  • Prevent toxic pockets from forming in hard to reach areas.
  • Keep debris from collecting on corals.
  • Keep food suspended longer so you can add less food.
  • Increase the chances of long term healthy tank success.

    Quick Compare - Tunze Powerhead Pumps


    Flow Rate

    Energy Use Diameter Output Diameter Controllable Tank Size
    Turbelle Nanostream 6025 740 5W 2.7" 1.5"/.59"


    Turbelle Nanostream 6045 400-1175 5-7W 2.7" 1.5"/.59" Adjustable 10-135
    Turbelle Nanostream 6055 250-1450 4-18W 2.7" 1.5"/.59" Yes 10-135
    Turbelle Stream 6105 700-3400 35W 3.5" 2.48" Yes 50-525
    Turbelle Stream 6065 1700 12W 3.5" 1.96" No 65-210
    Turbelle Stream 6085 2100 14W 3.5" 1.96" No 105-265
    Turbelle Stream 6125 3150 22W 3.5" 2.48" No 105-525
    Turbelle Stream 6155 1050-3950 52W 3.5" 2.4" Yes up to 800


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8 Items

  • Outstanding Powerhead By Ronald on 2/20/2015

    This is my first Tunze product and I am extremely satisfied. Quiet operation and outstanding flow. Great compact powerhead, fits well in a biocube.
  • Moves water By Xavi on 2/26/2014

    This thing moves some serious water. I will be swapping out my other powerhead for another Tunze.
  • Good Powerhead Overall By Kyle on 2/21/2014

    First time buyer of Tunze. The flow is wide and gentle. The operate completely silent. They do have a small click sound on startup as someone else mentioned but it isn't a problem to me since they run 24/7.

    The build quality seems good and I think they will last more than long enough with normal maintenance. My only complaint about these powerheads is that the magnet is weak. I have a rimless tank so the glass is thicker. I have these on 1/2in thick glass and they would not stay supported unless the cord was somewhat holding it up. I remember moving the cord once or twice while setting up the tank with prior to filling with water and they would crash down to the bottom of the tank. If the magnet were stronger, it would get 5 stars as the silence is golden.
  • Upgrading from Hydor to Tunze Terbelle pump By ShadowACE on 6/26/2013

    Installation was a snap. A little more assembly than the Koralia.

    Too soon to tell on the longevity. but being German made I expect it to be better in the long run.

  • good strong pump By Kirk on 2/9/2013

    I have this running on the wavemaker option of the reefkeeper, very small click on startup almost silent.
    The magnet does seem to be weak works on 1/4" glass but any thicker glass could be a problem and the way the pump mounts to the magnet could be broken if force together wrong.
  • Not worth it.... By AH on 11/1/2012

    Just received it and already can't get the parts to snap on correctly and securely. The magnet is weak and when I put it in my tank falls unless I have the power cord supporting it.

    Really bad design and too expensive.

  • Perfect! By Tyler on 7/7/2012

    This is the perfect small pump, in my opinion. I use this on my Nanocube and a 6045 in my 75. Easy to aim, broad gentle flow, reasonable price... Typical Tunze perfection!
  • Excellent Pump By Anthony on 6/22/2011

    Excellent pump. Over-performs like all Tunze products.

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