KORALIA 3 UL 850 gph 6.5W

by Hydor

Product Features

• Patented Magnet support for free positioning in aquariums with glass up to 15mm thick
• Sphere connection to direct water flow freely
• Exclusive propeller: exceptional hydraulic performance with low energy consumption
• High performance
• Quick and easy maintenance

Product Details

• Product Dimensions: 8 x 4 x 4.5 inches ; 1.1 pounds
• Shipping Weight: 1.4 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000O3AQZC
• Item model number: P19301
• Average Customer Review: 4.2 out of 5 stars  See all reviews (8 customer reviews)
• Amazon Best Sellers Rank: #30,172 in Pet Supplies (See Top 100 in Pet Supplies)

Product Description

Innovative circulation pump for aquariums. The exclusive Hydor design and technology guarantee a continuous and powerful water flow which can be directed freely thanks to the special sphere shaped connection to the exclusive patented magnetic support. High performance, low energy, quick easy maintenance.

Customer Reviews

Most Helpful Customer Reviews

5 of 5 people found the following review helpful:

5.0 out of 5 stars Koralia 3, September 14, 2009

By 

Ryan C. Reichardt "Always into something" (Ramsey, MN United States) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: KORALIA 3 UL 850 gph 6.5W (Misc.)

Excellent powerheads. Well made with good materials. This is not some cheap brittle 3rd world plastic junk. I would advise against use with a wave timer as they tend to start a little hard. I don't know if it is bad for the pump but I don't like the sound it makes so I set that pump to run constant. I use this in a 55 gallon mixed saltwater tank, it is overkill for a 55 but it moves some serious water. I think 100gal and larger tanks would be better. I cannot comment on the durability of the #3 pump because it is still new, however, the Koralia nano pump I have has been in use 24/7 since I bought it and it is almost 3 years old. The nano is covered in coralline algae and is still working smooth. I would not aim the #3 at branching frogspawn or hammer corals or similar unless they are at the other end of the tank. They seem to push a little violently on delicate corals. Mine sits about 2-3 feet away everything but zoa polyps and they don't seem to mind the wicked current. Amazon had them listed for $20.00 dollars cheaper than any of the local stores around here. Nice simple way to move 850+/- gallons an hour. I would buy another.

4 of 4 people found the following review helpful:

5.0 out of 5 stars KORALIA 3 UL 850 gph 6.5W, November 10, 2009

By 

T. Hoffman "Dawgphish" (Austin, TX) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: KORALIA 3 UL 850 gph 6.5W (Misc.)

I have a freshwater 72 gal Bowfront aquarium. The pump adds only a very low hum to the room and is easy to place with the magnetic bottom. My one criticism is that the pump cant swivel 90 degrees on its base. The maximum the pump can swivel is probably 45 degrees. I would have liked to attach it to the back of the tank and swiveled it to point it to the back corner. Instead its attached to the side and pointed straight to the opposite back corner. The pump works so well that I probably could have used the Koralia 2 in my 72 gal tank. The plants in the opposite corner from the pump are leaning and the one large angel fish took a little time to get used to the force of the current. The shape of the angel fish works like a sail if it in the wrong position. After the initial snow globe effect, the quality of the tank water is much improved and all the fish are doing good.

1 of 1 people found the following review helpful:

4.0 out of 5 stars Moves a lot of water!, February 21, 2011

By 

Joseph M. Cohen (Needham, MA United States) - See all my reviews

This review is from: KORALIA 3 UL 850 gph 6.5W (Misc.)

Positives: 1) Moves a lot more water than think it will;

2) The magnetic connector is rock solid, works better than epoxy on coral frag- you will be impressed.

3) Compared to some of the competitors (Tunze, Vortech, etc) it is reasonably priced

4) Works just as well as the next generation models ( I have both)

5) As a result of have such a strong connection to the tank wall, the aim can be safely adjusted with removing the unit

6) Easy to clean, few moving parts- and the replacement parts are cheap

7) I've never met a dead spot this pump can't fix.

Negatives: 1) Move a lot more water than you think, the have different sizes for a reason. Water movement is not like filtration- Bigger isn't always better;

2) Not designed to be turned off and on with regularly. It'll run forever if left alone (and I mean years), but will burn out out if you put it on a timer with anything less than a 10-12 hour interval;

3) This series cannot be synced, to generate a true wave pattern;

4) Takes up a lot of tank real estate and can be difficult to hide;

5) Some of algae eaters are taken off guard by the way the pump pulls in water. It pulls water from the sides, not the back.

I watched an Otoclinus move from the tank wall to the pump, w/o realizing the current direction... we call him lefty now.

I don't want to leave a negative impression; This is a great pump and with the newer model out you can get these for a good price. If you look closely you'll see a lot of them at LFS's

Just buy the right size for you livestock

(fyi- The Koralia 1 is under appreciated. Even in a bigger tank it can provide just the right amount of added water movement to a tank running power filters.)