Saturday, October 27, 2007

Hydor Koralia Nano powerhead

The Hydor Koralia Nano powerhead is proof that "Dynamite Comes in Small Packages". At only 2.5" long this tiny pump pushes 265GPH and only uses 3.5 watts of power. This pretty much allows this pump to claim the title as the most efficient small powerhead.

The Koralia pumps have already gained a good reputation as being a quality water movement device. The Koralia Nano is around $30 usd so this also makes it a good deal!

The flow generated by this powerhead is different than the traditional "jet" style pump. The propeller design of the Koralia produces a wider volume of flow at a lower velocity. This more gentle style flow is friendlier for both your corals and your fish. The "jet" style pumps always seem to blow my fish around when they would get in front of the jet. The Koralia pumps still push them around but not as aggressively.

Another bonus with the Koralia is the included magnetic mount. This allows mounting the powerhead in almost any spot in the aquarium. The mount is surrounded by a large suction cup that will hold the pump in place for a moment while you attach the back magnet. This pic shows my Koralia mounted on the back wall of the 28G Nano Cube. The front half of the magnet mount is inside the tank and back half of the magnet is inside the filter compartment on the other side of the wall.
The one gripe about this pump is that the propeller style pumps are not wave timer friendly. I have heard rumors that Hydor is planning on making a wave timer for these pumps but I have not seen any proof of this...yet. One possibility is that they may work on a long cycle timer such as a ReefKeeper2. I will test this in the near future and post my results here.
Overall this is a great powerhead and produces an excellent flow pattern for a small aquarium. The pump really is sleek, stealthy and very efficient making it a great choice.

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