Koralia Nano Powerhead (425 GPH) USA

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Out of stock

Discontinued by Bulk Reef Supply
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Great affordable powerhead for smaller tanks. Super compact design without comprising efficiency and adjustable flow direction.

Koralia Nano 425 – best suits a marine tank from 15-30 gallons.


High flow is very important to maintaining a thriving healthy aquarium. Aquariums with poor flow can experience a number of easily avoidable health issues. 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 - Hydor Koralia Nano



Nano 240

16-28 gallons

10-15 gallons

240 GPH

3.5 Watts

2" x 3-3/4"

Nano 425

28-50 gallons

15-30 gallons

425 GPH

3.5 Watts

2" x 3-3/4"

Nano 565

40-65 gallons

20-40 gallons

565 GPH

3.5 Watts

2" x 3-3/4"

More Information
UPC 841421007168
Gallons Per Hour 300 - 600 GPH
Variable Speed No
Included Mounting Magnetic, Suction Cup
Power Type AC
Power Consumption 3.5W
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Product Questions

Can this powerhead be attached to filter wall in a Biocube such that both magnets are submerged without the risk of rust or corrosion?
Question by: Bill Fisher on Jun 6, 2017, 8:19 AM
According to Hydor the magnets that are in the tank are the same magnets that are on the outside. The only difference is that the inside magnets are mounted on an anti-vibration plate. You should be just fine mounting them in this fashion.

Happy reefing!
Answer by: Zack on Jun 13, 2017, 3:36 PM