Koralia Nano Powerhead (425 GPH) - Hydor

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Koralia Nano Powerhead (425 GPH) - Hydor

100% Recommend this to a friend (1 of 1)

SKU: 202149

reg. $35.99

Special Price: $30.59

In Stock: 32
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Quick Overview

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.


Full Details

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"


1 Item

  • Good power head for a great price By William on 5/10/2017

    I love these small Hydor power heads, you can stick them anywhere in the tank. They do not take up a lot of space, they are super quiet, and do not make much noise when the switch on via the Hydor controller. The work great for me, I have a 4' tank and I use several of them to achieve my goals. They would be perfect for blasting your 2-part dosing lines coming into your sump to help mix the soda ash solution.


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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 8:19:00 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 (Admin) on Jun 13, 2017 3:36:00 PM