Turbelle Nanostream 6015 (475 GPH)

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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: 475 GPH
  • Energy consumption: 3.5W
  • Voltage/frequency: 120v
  • Cable length: 78.7”
  • Diameter: 2.7”
  • Output diameter 1.5/.59”
  • Max Glass Thickness: 1/2"


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

Model Flow Rate
Energy Use Diameter Output Diameter Controllable Tank Size
Turbelle Nanostream 6015 475 3.5W 2.7" 1.5"/.59"


10-55 Gal
Turbelle Nanostream 6020 660 5W 2.7" 1.5"/.59"


5-100 Gal
Turbelle Nanostream 6025 740 5W 2.7" 1.5"/.59"


10-55 Gal
Turbelle Nanostream 6040 53-1190 5W 2.7" 1.5"/.59"


5-135 Gal
Turbelle Nanostream 6045 400-1175 5-7W 2.7" 1.5"/.59" Adjustable 10-135 Gal
Turbelle Nanostream 6055 250-1450 4-18W 2.7" 1.5"/.59" Yes 10-135 Gal
Turbelle Stream 6065 1700 12W 3.5" 1.96" No 65-210 Gal
Turbelle Stream 6085 2100 14W 3.5" 1.96" No 105-265 Gal
Turbelle Stream 6105 700-3400 35W 3.5" 2.48" Yes 50-525 Gal
Turbelle Stream 6125 3150 22W 3.5" 2.48" No 105-525 Gal
Turbelle Stream 6155 1050-3950 < 52W 3.5" 2.4" Yes up to 800 Gal
Turbelle Stream 6255 1300-4800 < 58W 3.5" 3" Yes up to 1100 Gal
More Information
UPC 4025167601514
Variable Speed No
Gallons Per Hour 300 - 600 GPH
Included Mounting Magnetic
Power Type AC
Power Consumption 3.5W
Power Cord Length 6 Feet
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Product Questions

Question by: Jack Bierie on May 6, 2022, 6:21 PM
You can always add a small powerhead to get flow to that area; one small enough that it won't blow any sand around. Alternatively, you can move some of your rockwork around so that your existing powerheads can reach that low flow spot as well.
Answer by: Scott F. (BRS Staff) on May 10, 2022, 12:19 PM
Whats the trick to disassembling for cleaning? I've watched the Tunze video and there must be something that I'm missing?
Question by: Robert Messinger on Mar 19, 2022, 11:11 AM
Hey Robert, thanks for the question! generally just soaking the unit in citric acid solution why functioning will help clear up unwanted debris. That said at min 10:53 in the following video https://www.youtube.com/watch?v=uqL46Zb3ExE you can get a better idea of how to clean those pumps. You will have to remove the swivel and remove the cap to access the inside. Feel free to reach out to us with any further questions!

Answer by: James Johnson (BRS Staff) on Mar 23, 2022, 4:33 PM
Would this pump be considered “wide angle”? If not could you recommend something else for a 30 gallon reef setup?
Question by: Richard kulin on Nov 18, 2021, 8:18 AM
Hi There.

Thank you for your question. The Nanostream 6015 has a nice flow but not as wide. You can look at the Tunze Turbelle Nanostream 6020 for a wider flow pattern. Happy Reefing.
Answer by: Christian (BRS Staff) on Nov 30, 2021, 1:10 PM
What is the maximum thickness glass these can be mounted?
Question by: GMF on Jun 6, 2019, 8:56 PM
Hey there,
Thank you for reaching out to us. The maximum thickness for this pump is 12mm (1/2")

Please let us know if you have any further questions and take care!
Answer by: Matt Lucero on Jun 7, 2019, 7:23 AM