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Hydor Koralia Nano Aquarium Circulation Pump, Includes Built-In Cable Protector, 565 GPH, Measures 2.4-Inches & is Ideal for Fresh or Salt Water Use

4.4 4.4 out of 5 stars 3,264 ratings

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565 GPH

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About this item

  • New and improved patented vibration absorbing magnet and suction cup support; Can safely hold the Koralia Nano 565 positioned in tanks with glass (or acrylic) up to 1/2" thick.
  • Flow rate of 565 gph; Ideal for fresh water aquariums from 40 to 65 gallons; Salt water acquariums 20-40 gallons
  • Power absorbed: 3.5 Watts. 50% less power consumption and up to 20% more water flow when compared to previous Koralia models
  • Sphere joint & compact design; Adjustable flow direction; Koralia measures 2.4-inches
  • Smaller design than older style Koralia pumps with similar flow rates; Includes cable protector and is ideal to use in tanks with urchins, puffers, parrot fish and triggers

Customer ratings by feature

Durability
4.3 4.3
Energy efficiency
4.3 4.3
Suction power
4.2 4.2
Value for money
4.2 4.2

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From the manufacturer

Koralia Nano image

Koralia Nano Aquarium Circulation and Wave Pump

In a world where nano tanks rule, Hydor has the solution:

Koralia Nano wavemaker and circulation pumps.

Hydor Koralia Nano Wavemaker and Circulation Pumps are compact and energy saving. The Koralia Nano Pumps are ideal to recreate in aquarium the natural and beneficial water motion of rivers and seas. Supplied with patented magnet-suction cup support for easy and safe positioning, Koralia can be connected to a controller like the Hydor Smart Wave and set to intervals of seconds, minutes or hours. Cable protector include (read instructions for correct positioning). Made In Italy by Hydor.

Features:

  • Patented Magnet Suction Cup mounting allows you to position the pump on glass, acrylic and plastic aquariums and enclosures.
  • Swivel the pump to direct the flow where it is needed.
  • Compact in size at 2.4 inches
  • Can be used with Hydor Smart Wave pump controller

Koralia Nano 240 Koralia Nano 425 Koralia Nano 565
Koralia Nano 240 Koralia Nano 425 Koralia Nano 565
Customer Reviews
4.4 out of 5 stars
3,264
4.4 out of 5 stars
3,264
4.4 out of 5 stars
3,264
Flow Rate 240 GPH 425 GPH 565 GPH
Recommended Marine Aquarium Size 10 to 15 gallons 15 to 30 gallons 20 to 40 gallons
Recommended Freshwater Aquarium Size 16 to 38 gallons 28 to 50 gallons 40 to 65 gallons
Power Absorbed 3.5 watts 4 watts 3.5 watts
Made In Italy
Magnet Suction Cup Mount
Cord Protector Included
Hydor Smart Wave Compatible

Looking for specific info?

Product guides and documents

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 3.5 x 2 x 2 inches; 9.6 ounces
  • Manufacturer recommended age ‏ : ‎ 1 month and up
  • Item model number ‏ : ‎ P29231
  • Department ‏ : ‎ Unisex-Adult
  • Date First Available ‏ : ‎ November 3, 2014
  • Manufacturer ‏ : ‎ Hydor
  • ASIN ‏ : ‎ B00P5P8V0Q
  • Country of Origin ‏ : ‎ Italy
  • Customer Reviews:
    4.4 4.4 out of 5 stars 3,264 ratings

Product Description

Compact and energy saving, this Koralia Nano 565 gph pump is ideal to recreate in your aquarium the natural and beneficial water motion of rivers and seas. It includes a magnet-suction cup for easy and safe positioning. Koralia can be connected to a controller and set to intervals of seconds, minutes or hours. Includes cable connector and is ideal for fish tanks of 40 to 65 gallons for freshwater and 20-40 gallons for marine water.

WARNING:

CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Important information

Directions

directions are in package

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Hydor Koralia Nano Aquarium Circulation Pump, Includes Built-In Cable Protector, 565 GPH, Measures 2.4-Inches & is Ideal for Fresh or Salt Water Use
Hydor Koralia Nano Aquarium Circulation Pump, Includes Built-In Cable Protector, 565 GPH, Measures 2.4-Inches & is Ideal for Fresh or Salt Water Use
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Price$34.99$24.99$119.99$79.00$19.99$179.99
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Wednesday, Apr 3
Get it as soon as Tuesday, Apr 2
Get it as soon as Thursday, Apr 4
Customer Ratings
Suction power
4.2
4.1
3.7
4.4
4.0
Noise level
4.0
3.8
3.8
4.5
4.0
Value for money
4.2
2.3
4.1
3.5
Sold By
Amazon.com
usmagob
Tiger Mountain Industrial Company, LLC
Hygmarine
TAG Supplies
Smartzoomart
power source
Ac/dc
Corded Electric
Corded Electric
DC
Corded Electric
Corded Electric
material
Plastic
Plastic
Plastic
Plastic
Plastic
style
565 GPH
Submersible
Dc Sine Wave Maker Pump Marine Aquarium Coral Reef
18w
Standard
Submersible
maximum flow rate
2138 liters per hour
8.83 gallons per minute
9000 liters per hour
65 gallons per minute
7570.82 liters per hour
weight
0.6 pounds
0.9 pounds
0.57 pounds
1.39 pounds

Customer reviews

4.4 out of 5 stars
4.4 out of 5
3,264 global ratings

Customers say

Customers like the power, size and performance of the pet supplies. For example, they mention it's very powerful, works well with the controller and provides good alternating flow. Customers are also impresseded with the flow, saying it'll get the water moving in a 20-gallon tank. Overall, most are happy with their purchase and recommend it to others.

AI-generated from the text of customer reviews

441 customers mention394 positive47 negative

Customers like the performance of the aquarium pump. They say it works well, is easy to clean, and works well with the controller. Some say that it works perfectly for an aquarium of 42 liters (11 gallons) and is quiet. Overall, most are satisfied with the performance and recommend it to others.

"...These locations works great for both fish and coral...." Read more

"This seems to work great. Compact and gets the water flowing in my 40 gallon tank...." Read more

"Works fantastic" Read more

"...Everything was fine and I have it towards the “ocean floor” of the tank to not allow old food to settle and instead get washed up and filtered...." Read more

366 customers mention291 positive75 negative

Customers like the flow of the pet supplies. They mention it has the perfect amount of flow for a 20 gallon tank, provides good alternating flow, and is compact. They say it moves a good amount of water without overpowering fish. Customers also appreciate the magnet design, which makes it easy to move the pump around. They also say the plants move a little back and forth, giving the aquarium more life.

"Smaller wave maker but has no noise and can really get the water moving for its size. Great product." Read more

"This seems to work great. Compact and gets the water flowing in my 40 gallon tank...." Read more

"...having two 425 gpg pumps plus a 240 is too much, but it's the perfect amount of flow for a 20 gallon tank...." Read more

"...They do move enough water to keep debris moving until your filter can grab it, keeps oxygen in my water, and my fish are out and about swimming non..." Read more

325 customers mention226 positive99 negative

Customers are mixed about the noise of the pet supplies. Some mention that it's very quiet when in operation, while others say that it makes a loud noise when not installed inside.

"...The fan was 1/20 the cost of any decent chiller unit, much quieter, uses minimal energy and allowed me to use the saved money to buy an ATO to keep..." Read more

"...Pros:+ Lower price than competitors+ VERY quiet when in operation+ Magnet attachment systemCons:-..." Read more

"It rattles a lot, got a replacement and it was even louder. Sent both back and bought tunze nanostream for a few bucks more - perfectly silent...." Read more

"Smaller wave maker but has no noise and can really get the water moving for its size. Great product." Read more

287 customers mention271 positive16 negative

Customers are satisfied with the circulation pump. They mention that it does a great job of circulating water in their tank. Some say that the pump balances out the tank flow and gets rid of the dead spot. Overall, most are happy with their purchase and recommend it to others.

"...Great product." Read more

"...If you're looking for a nice quite pump for a tank below 30 gallons, I would highly recommend these...." Read more

"Great circulation for its size. The only thing I don't like is the new mounting system. It makes it very difficult to point where you want it...." Read more

"...For the quality, price and function, this is a great pump, especially on Amazon...." Read more

219 customers mention191 positive28 negative

Customers like the size of the aquarium fan. They say it's small and easy to position. Some say it fits great in their tank and provides minimal current. Overall, customers are satisfied with the size and quality of the product.

"...It was the perfect size and gave me the right amount of flow in a tank this size for corals...." Read more

"...I will keep these 2 powerheads for now as they are cheap and small, but I added an HOB filter (penguin biowheel 200) to beef up water movement and..." Read more

"I like the compact size and the output. Description says the pump has a ball joint that makes it possible to angle the pump to one's desire...." Read more

"...It's slightly larger than an egg but does not take up a lot of space...." Read more

170 customers mention119 positive51 negative

Customers like the power of the pet supplies. They say it's very powerful, and perfect for small tanks. The fan power is just enough to push the water for proper aquarium circulation, and it'll create a great flow. Customers also appreciate the quiet operation and low wattage consumption. Overall, most are happy with the power and efficiency of the product.

"...fan was 1/20 the cost of any decent chiller unit, much quieter, uses minimal energy and allowed me to use the saved money to buy an ATO to keep the..." Read more

"PROS: power and longevity. Good circulation for my 55-gallon tank combined with a Fluval 306 canister filter set to half power...." Read more

"...It was too powerful so I have to get a cheapy Amazon one." Read more

"This is a great powerhead. Aimed towards the top but still circulating the bottom...." Read more

150 customers mention127 positive23 negative

Customers appreciate the value of the pet supplies. They mention that it has a great flow for the money, and is the best small pumps for the price.

"...summary, the engineering is sound on this circulation jet, and the price is fair...." Read more

"...Pros:+ Lower price than competitors+ VERY quiet when in operation+ Magnet attachment systemCons:-..." Read more

"Great flow for the money" Read more

"...For the quality, price and function, this is a great pump, especially on Amazon...." Read more

267 customers mention173 positive94 negative

Customers are mixed about the quality of the pet supplies. Some mention that the build quality is excellent, the pump is solidly built, and reliable. However, others say that it is not all that strong, the buildquality on this model is really bad, and it failed three time within 4 years.

"...In summary, the engineering is sound on this circulation jet, and the price is fair...." Read more

"...around, but with this one added into the setup it seems to keep most of my corals happy...." Read more

"...It's a tight fit and I nearly broke the plastic, it is definitely fatigued so I need to be careful with it...." Read more

"...Since adding this wave maker, my algae is in check and my fish are so happy!..." Read more

In love, beware blockages
5 Stars
In love, beware blockages
Bought this after the 500gph made my duckweed fly around my tank. The 200gph is so much better and my fish enjoy it the same.After installing this it created a horrible noise off and on, but it was due to small floater roots sucked in the intake. It creates a strong sucking force behind the motor so beware. I was forced to move areas around to accommodate the fan.
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Top reviews from the United States

Reviewed in the United States on December 28, 2015
Size: 425 gphVerified Purchase
One person found this helpful
Report
Reviewed in the United States on September 23, 2015
Size: 565 GPHVerified Purchase
6 people found this helpful
Report
Reviewed in the United States on March 11, 2024
Size: 565 GPHVerified Purchase
Reviewed in the United States on April 15, 2015
Size: 425 gphVerified Purchase
Reviewed in the United States on February 22, 2024
Size: 425 gphVerified Purchase
Reviewed in the United States on March 23, 2024
Size: 240 gphVerified Purchase
Customer image
5.0 out of 5 stars In love, beware blockages
Reviewed in the United States on March 23, 2024
Bought this after the 500gph made my duckweed fly around my tank. The 200gph is so much better and my fish enjoy it the same.
After installing this it created a horrible noise off and on, but it was due to small floater roots sucked in the intake. It creates a strong sucking force behind the motor so beware. I was forced to move areas around to accommodate the fan.
Images in this review
Customer image
Customer image
Reviewed in the United States on November 5, 2013
Size: 425 gphVerified Purchase
One person found this helpful
Report
Reviewed in the United States on January 31, 2024
Size: 565 GPHVerified Purchase

Top reviews from other countries

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Adolfo inf.
5.0 out of 5 stars Buenos materiales
Reviewed in Mexico on December 5, 2023
Size: 425 gphVerified Purchase
Maxi
1.0 out of 5 stars Defective-doesn’t work
Reviewed in the United Kingdom on June 7, 2023
Size: 425 gphVerified Purchase
Mende Kondinski
1.0 out of 5 stars not working product
Reviewed in Australia on August 17, 2023
Size: 425 gphVerified Purchase
RK
5.0 out of 5 stars Best valued pumps out there! But make sure you understand what you need!!!
Reviewed in Canada on September 5, 2016
Size: 565 GPHVerified Purchase
Customer image
RK
5.0 out of 5 stars Best valued pumps out there! But make sure you understand what you need!!!
Reviewed in Canada on September 5, 2016
To start my review I would like to state that even though a power head says its for a 20G tank and you have a 20G tank, doesn't mean you can only by one power head and be like "Yay, I have flow everywhere!". You need more than one to achieve appropriate flow through your tank, especially if you are hosting corals. If hosting corals you need to have at least 30x the flow vs volume of your tank. So if you have a 20 gallon nano you would need at LEAST 600 gallons per hour of water movement.

I have seen people complain about the tank ratings post by Koralia saying they are inaccurate but I beg to differ. The ratings are there to guide you which power head provides USEFUL FLOW WITHOUT POSSIBLY UPSETTING INHABITANTS. With that said, I have had experience with all three Koralia nano power heads so I will be reviewing all three.

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

All three pump generally are designed the same way. I find them very reliable and quiet but they can click when they start up so using them with a wave maker can be annoying. The magnetic mounting is probably the best feature. No more suction cup issues here! You can even slide the magnet on the external side of the glass to move or adjust the location of the pump. These magnets are STRONG so be careful not to let them slam up against your glass! Directing the power head is a little meh. The amount of tilt you get is limited and the power cord works against you and gets in the way. They all come apart the same way and are generally easy to clean. Now for the individual remarks......

First up is the Hydor Koralia Nano 240!!! This pump is pretty timid. It could be used solo in a 5 gallon. For a 10 or 15 you should consider getting 2 unless you are getting some decent water movement from another source such as a Hang-On Back Filter. Another useful feature is to simple remove that one annoying dead spot in larger tanks. They are small and can be nicely hidden from sight.

Second up is the Hydor Koralia Nano 425!! This is a sweet little pump and works great for water movement. I had three ( an example of needing more than one which came out to 1275 gallons per hour ) in a tall 25 gallon marine tank and they did a great job! From personal experience I wouldn't used these in a tank longer than 24" like a 20 gallon long ( 30" long tank ). It can't really reach far enough to the other end.

Lastly is the Hydor Koralia Nano 565!! This a new nano pump from Hydor, The pump basically looks like a 425 but with some mods to push more water. It works fabulous and if you have a 20-40 gallon tank, I would skip over the 425 and go straight to these. The extra flow is worth it, especially if your tank is of the marine type.

Overall these pumps are great. They run quiet and don't need lots of maintenance. There are fancier pumps out there for sure, but spending $50 on these versus $200 on those, these pumps are a win.
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12 people found this helpful
Report
M
5.0 out of 5 stars Nano 240 works great in 20 gallon, very noisy if you don't install it properly
Reviewed in Canada on October 21, 2021
Size: 240 gphVerified Purchase