plug n play By chad on 1/21/2013
chad would recommend this product to a friend
Great lil pump. Love the magnets no suction cups to worry about great water movement in my 55 gal. tank at an affordable price
Great By Brian on 1/15/2013
Brian would recommend this product to a friend
This powerhead is doing exactly what I bought it for, to move water efficiently and effectively.
Reliable, most of the time By David on 1/10/2013
David would recommend this product to a friend
I've had Koralias for about four or five years now. They're great quality, but I've noticed that they sometimes start with reverse flow when I use a timer or wavemaker. I've heard that this flaw has been corrected recently, but I haven't followed up. I purchased a pump that does this on occasion approximately 9 months ago.
Other than that, broad flow and relatively compact. Good pump!
Whisper Quiet, love it By Randal on 12/16/2012
Randal would recommend this product to a friend
The pump is not even noticeable and along with that it provides good flow to my 40 gallon breeder along with a large directional radius so I can aim it wherever i need flow. My only complaint is I wish the cable was longer.
Not what I was expecting By Michael on 11/30/2012
Michael would recommend this product to a friend
This pump is very well made and the magnets are nice. Very quite. It does not have a narrow stream of fast moving water like most power heads. Instead it has a wide area of slow moving water which might be good for certain applications. I was expecting a traditional flow pattern.
Good powerhead By Andrew on 11/29/2012
Andrew would recommend this product to a friend
This power head is quiet and has nice flow. Recommended
Great Powerheads!!! By Dan on 11/28/2012
Dan would recommend this product to a friend
I have 2 of these (425 model) in my 29g tank and they work wonders, plus i have a 1400 model in my 90g tank. definitely well worth the money you pay and thats not even a lot! :)
Good product By Sam on 11/22/2012
Sam would recommend this product to a friend
I use one 750 in a 90g tank and can point it almost right at corals with out hurting the coral at all, while still preventing detritus from building up. The draw backs are the thin slots can get clogged, wont always flow in the right direction when turing them on, and start to break down after a while (about 2 years of running). For the price though i like them a lot and are great for starting tanks.
Great Mover By Ryan on 11/5/2012
Ryan would recommend this product to a friend
purchased one of these guys (1150) to help circulate water around my rocks and it does a great job,,, Runs quiet and easy to throw into any tank.... Great Product
Worked good for a while. By Mike on 10/22/2012
Mike wouldn't recommend this product to a friend
I bought 2 of these (750 Model) a while back to try as a wavemaker setup. They worked ok for a while but then started to run in reverse at different intervals and then to the point where they would always run in reverse. With them running in reverse it has caused the round part in the screen, in front, to break away on the both of them. If I turn them off, 9 times out of ten they start in reverse. So now I just try to leave them on all the time, when I use them. I am going to replace them with another brand.
Buy it. Seriously. By fissy guy on 10/17/2012
fissy guy would recommend this product to a friend
I bought this pump (the 750 model) in March of this year. I was worried due to the cheap price that I would get cheap quality out of it. ...let me tell you, you can take it apart fully (which I have done several times for cleaning and inspecting, as I do with everything else in the tank), and it is still performing now almost 8 months later with just the same power it did on day one, and hasn't given out on me once. If it ever died, I would buy another in a heart beat.
Bottom line--- IT LASTS, and IT WORKS VERY WELL.
Over 3 years and still going By amber on 10/16/2012
amber would recommend this product to a friend
I bought 2 of these when I set up my first tank. Since then I have tried adding different brands over the years when I wanted extra flow but they all died or had issues while my original Koralias are still kicking with zero issues ever.
I take them out and bang them in the sink to remove bulid up and while I know I shouldn't, still they keep on blowing. They are silent and dont run hot which makes them perfect products.
Good product By Chase on 10/11/2012
Chase would recommend this product to a friend
Easy to install with good flow. I bought two to push water around my rock. Strong enough for LPS corals and not harsh on the fish.
Don't waste your money on suction cup pumps. By turtleghandi on 10/6/2012
turtleghandi would recommend this product to a friend
I have both the 550 and the 1050 pumps. I got them to replace some cheap suction cup pumps that kept falling down. Both are working great. They have stayed right were I put them (thanks to the included magnet) and I don't detect any stray voltage in the tank. The packaging (on Hydor's part) could be a little better. The parts were just sort of rolling around in the boxes. Its not really a problem since none of them appeared to be damaged, but it makes them seem cheap and I could see how it might result in some damage during shipping.
1050 IS THE WAY TO GO! By mike on 10/4/2012
mike would recommend this product to a friend
i have two 1050's in my 120 and for the price they blow away the compretition. so much flow and such a wide area they move so much water
GREAT WATER FLOW By charles on 9/25/2012
charles would recommend this product to a friend
THIS IS A GREAT PUMP, I'VE HAD MINE FOR OVER A YEAR NOW AND HAVE HAD NO ISSUES WITH IT RUNNING. IT IS VERY QUIET.
Satisfactory for small tank By MJ's Custom Aquarium Water on 9/21/2012
MJ's Custom Aquarium Water wouldn't recommend this product to a friend
Pro's - magnet is awesome, it is going nowhere. Unit is very quiet, I don't notice it turning on and off. The quality of the build should last.
Con - I have a 550 and even in a 34 gallon tank it is weak. I have a much smaller one that generates more current. A little unimpressed with it's power.
Great Product! By wesley on 9/17/2012
wesley would recommend this product to a friend
I needed a good pump so i got this one to go with my other and it works amazing, it also looks great in the tank. i would recommend this to anyone
Good flow By Earl on 9/13/2012
Earl would recommend this product to a friend
I have two of these, one on each side toward the rear of the tank and they keep good flow throughout the tank. I supplement them with two nano powerheads on the sides toward the front of the tank. Corals are thriving and growing well.
cheap way to make wave By Yutong on 9/11/2012
Yutong would recommend this product to a friend
it is a cheap way to make wave compare to mp10
Works great By mud on 9/5/2012
mud would recommend this product to a friend
I started with one of these and have added a 2nd one with wave controller(750). Quiet and affordable. Whats not to like?
Good for the price, but there is a catch By Joshua on 9/3/2012
Joshua would recommend this product to a friend
I currently have 3 Evolutions, 2 of them work perfect and the other has to be "bump" started. The price is right compared to the next best thing, the Vortech. You can buy 10 of these for the price of 1 of those, so for the hobbyist, this is the way to go.
GOOD PUMPS FOR THE MONEY By Tom on 8/12/2012
Tom would recommend this product to a friend
I bought these pumps because they were alot cheaper than others I looked at. They are a bit bulky in size but they work good. They are quiet, magnets are really strong. They are hard to adjust the angle of flow but they also stay at the angle you put them at so a good trade off. I also use them to stir my saltwater in my mixing bucket which they do really well at.
great pump! By Brandon on 8/7/2012
Brandon would recommend this product to a friend
I was very skeptical when buying this pump because i had heard bad things about the older models, but this has worked great. I have had it for about 6 months and it has worked just fine. Super quiet and none of the clicking sounds that I have heard about. and moves a lot of water in my 40 breeder. I will definitely buy these in the future when I decide to add another to my tank.