New Hydor pump
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Beenalongtime79
New member
Mike,
I think this a semantics issue. Your vortex is different from everyone else's vortex. I think most people are talking about air being pulled into their pumps via vortex, whereas you are probably complaining of swirling water in your water column just above your pump.
You aren't actually pulling in air into your pump... am I right. Your pump just causes a swirling motion in the water right?
I get the same thing on mine, but it is most evident on the bottom side of the pump and it pulls about 20" from the bottom of the tank... somewhat akin to a strong under tow.
It is quite impressive, but doesn't cause me any grief. It is a testament to the pumps power in how much flow it is generating.
I'm sorry you are having so much trouble with yours.
Cheers,
John
I think this a semantics issue. Your vortex is different from everyone else's vortex. I think most people are talking about air being pulled into their pumps via vortex, whereas you are probably complaining of swirling water in your water column just above your pump.
You aren't actually pulling in air into your pump... am I right. Your pump just causes a swirling motion in the water right?
I get the same thing on mine, but it is most evident on the bottom side of the pump and it pulls about 20" from the bottom of the tank... somewhat akin to a strong under tow.
It is quite impressive, but doesn't cause me any grief. It is a testament to the pumps power in how much flow it is generating.
I'm sorry you are having so much trouble with yours.
Cheers,
John
bergzy
New member
i just got my two #4's and they appear to be moving water really nice. i dont feel a jet like i do with the seio's AND the tunze nano.
the flow seems to be rather broad and dispersed.
i have one directly on the side pointing to the other side of my tank that sits 1" below the water surface. i get some turbulence but no vortex as some are experiencing.
the other is in the far back corner and is pointing at a 45 degree angle.
thus with 4 mj 1200's, a seio 1500, a nano and two #4's along with my sump flow...i am getting...5760gph flow (32x turnover) in a very varied complex pattern with a lot of gentle turbulence.
i prefer this over having two large tunze streams on either side of the tank ends. the tanks i see them in just seem to blow some tings mercilessly that are cloe to the output. yes, i believe that the large streams have their uses, otherwise nobody would be buying them. in my case, i do not mind the appearance of powerheads on the side of the tank.
the sheer number of pumps i have neatly tucked away in corners with the exception of the nano and #4 in the front of the tank...the other powerheads are not really that noticeable.
i plan to get rid of the seio 1500 and move the no4 into its place in the back corner and have the nano 6045 in the front when it finally decides to show up.
though the mj mod's most likely prompted hydor to produce these pumps, it is my opinion tha the mj mods are the ugliest thing i have ever seen.
though i said that i dont mind having powerheads in the tank...i do not like having things without a finished look to them. sounds a little weird, i know. i WILL find the mj mods distracting due to the rough jerry-rig appearance of them.
horrible immediate late night picture.
count the powerheads in the tank...sort of like...finding nemo, i mean waldo!!!
the flow seems to be rather broad and dispersed.
i have one directly on the side pointing to the other side of my tank that sits 1" below the water surface. i get some turbulence but no vortex as some are experiencing.
the other is in the far back corner and is pointing at a 45 degree angle.
thus with 4 mj 1200's, a seio 1500, a nano and two #4's along with my sump flow...i am getting...5760gph flow (32x turnover) in a very varied complex pattern with a lot of gentle turbulence.
i prefer this over having two large tunze streams on either side of the tank ends. the tanks i see them in just seem to blow some tings mercilessly that are cloe to the output. yes, i believe that the large streams have their uses, otherwise nobody would be buying them. in my case, i do not mind the appearance of powerheads on the side of the tank.
the sheer number of pumps i have neatly tucked away in corners with the exception of the nano and #4 in the front of the tank...the other powerheads are not really that noticeable.
i plan to get rid of the seio 1500 and move the no4 into its place in the back corner and have the nano 6045 in the front when it finally decides to show up.
though the mj mod's most likely prompted hydor to produce these pumps, it is my opinion tha the mj mods are the ugliest thing i have ever seen.
though i said that i dont mind having powerheads in the tank...i do not like having things without a finished look to them. sounds a little weird, i know. i WILL find the mj mods distracting due to the rough jerry-rig appearance of them.
horrible immediate late night picture.
count the powerheads in the tank...sort of like...finding nemo, i mean waldo!!!
Rekonn
Premium Member
Pjr300, not a fair comparison. Hydor just hasn't made a Koralia that puts out that much gph. Hypothetically, if they did, they'd slaughter the Tunze in terms of bang for the buck. Just look at the trend as the Koralias get bigger:
Tunze 6080
2250 / $188 = 12 gph/$
Koralia 1 - 400 / $28 = 14.3 gph/$
Koralia 2 - 600 / $35 = 17.1 gph/$
Koralia 3 - 850 / $40 = 21.2 gph/$
Koralia 4 - 1200 / $50 = 24 gph/$
(prices and gph ratings from DrsF&S and MarineDepot)
Of course, you could buy two K4's for $100 and get 2400gph...
Tunze 6080
2250 / $188 = 12 gph/$
Koralia 1 - 400 / $28 = 14.3 gph/$
Koralia 2 - 600 / $35 = 17.1 gph/$
Koralia 3 - 850 / $40 = 21.2 gph/$
Koralia 4 - 1200 / $50 = 24 gph/$
(prices and gph ratings from DrsF&S and MarineDepot)
Of course, you could buy two K4's for $100 and get 2400gph...
bergzy
New member
i agree with koralia's topping the seio line. no doubts on that. but tunze is a different beast on it own. the 6080, while pumping 2250 gph...costs more than 3 times than that of a hydor no4. plus, the 6080 requires you to purchase the magnetic mount which will run you another $36.
tunze stuff is incredibly built for the most part. my master recirc pump i use for my return is great but is noisier than the ampmaster 3000 i had AND it uses slightly more watts per gallon pumped than the ampmaster did. i am banking on the fact that it will last longer than my ampmaster.
how long with the koralia pump last? who knows for now. but by the time i am probably going to replace them another latest and greatest thing will come out.
plus, the regular streams are HUGE for my liking! i dont mind powerheads in my tank but those are a little too big for my taste. max size for me is are the nano streams up in front of the display.
Rascal1371
Premium Member
Thought I would add my review to the mix. I put a Koralia #4 on my 150 (60x24x24) 4 nights ago. For comparison purposes, I have 2 OceanfloMJ900s in addition to a 1100 gph CL (4 outlets) & 1000 gph return (same). I shut everything down but the return for testing.
Size: It's big. Looks OK tucked away in the back corner (or at least it will when it turns nice and purple
), but anywhere else it's an eyesore, IMO.
Noise: Not an issue for me. Quieter than the stock MJ1200 which it replaced.
Mounting: The suction cup/magnet combination has no problem with my 1/2 in glass. The swivel mount does not allow the pump to be oriented at less than about 45 deg from the mounting surface, which was a bit of a drawback for me.
Flow: The overall amount of flow is great. For $50 it's hard to beat 1200gph at 12 watts and almost no noise. As for the type of flow, I am a little more lukewarm about that. Best way to describe it may be to say what it does not do. It does not push a large amount of water all the way across the tank, or even 1/2 way across. I would not put 2 of these at opposite ends of my tank and expect to see the effects of colliding flows in the center, which is what I get from my OFMJ900s. Nor does it create a wide, evenly dispersed expanding cone of gentle flow. The flow is very wide, it is just not evenly dispersed at all. Similar to what Herndog described, it is more like it creates 3 separate currents, each about 2-3 inches in diameter, angled away from the direction in which the pump is oriented at about 30 - 45 deg. These individual currents are quite strong. You could place a coral directly in front of the pump with perfect safety, but if one is off to the side and in the wrong spot, the flow might be too much even 6-8 inches away. I got around this by simply rotating the pump on its swivel, directing the higher flow currents away from any individual corals, but this might not work for any set up.
Again, overall I am very pleased, especially given the price, but not completely without reservations. I may try putting some gutter guard over the large openings on the front to see if that evens things out a bit.
Size: It's big. Looks OK tucked away in the back corner (or at least it will when it turns nice and purple
), but anywhere else it's an eyesore, IMO.Noise: Not an issue for me. Quieter than the stock MJ1200 which it replaced.
Mounting: The suction cup/magnet combination has no problem with my 1/2 in glass. The swivel mount does not allow the pump to be oriented at less than about 45 deg from the mounting surface, which was a bit of a drawback for me.
Flow: The overall amount of flow is great. For $50 it's hard to beat 1200gph at 12 watts and almost no noise. As for the type of flow, I am a little more lukewarm about that. Best way to describe it may be to say what it does not do. It does not push a large amount of water all the way across the tank, or even 1/2 way across. I would not put 2 of these at opposite ends of my tank and expect to see the effects of colliding flows in the center, which is what I get from my OFMJ900s. Nor does it create a wide, evenly dispersed expanding cone of gentle flow. The flow is very wide, it is just not evenly dispersed at all. Similar to what Herndog described, it is more like it creates 3 separate currents, each about 2-3 inches in diameter, angled away from the direction in which the pump is oriented at about 30 - 45 deg. These individual currents are quite strong. You could place a coral directly in front of the pump with perfect safety, but if one is off to the side and in the wrong spot, the flow might be too much even 6-8 inches away. I got around this by simply rotating the pump on its swivel, directing the higher flow currents away from any individual corals, but this might not work for any set up.
Again, overall I am very pleased, especially given the price, but not completely without reservations. I may try putting some gutter guard over the large openings on the front to see if that evens things out a bit.
You guys know that you can mod these quite easily as well too now right?
http://reefcentral.com/forums/showthread.php?s=&threadid=1023416
Replacing the stock prop with a real boat prop will give you the kind of flow you want IMO.
http://reefcentral.com/forums/showthread.php?s=&threadid=1023416
Replacing the stock prop with a real boat prop will give you the kind of flow you want IMO.
Thank you for the eloquent prose. You said exactly what I wanted to say only better. What he said people.
Herndog
Herndog
<a href=showthread.php?s=&postid=9104732#post9104732 target=_blank>Originally posted</a> by Rascal1371
Thought I would add my review to the mix. I put a Koralia #4 on my 150 (60x24x24) 4 nights ago. For comparison purposes, I have 2 OceanfloMJ900s in addition to a 1100 gph CL (4 outlets) & 1000 gph return (same). I shut everything down but the return for testing.
Size: It's big. Looks OK tucked away in the back corner (or at least it will when it turns nice and purple
Noise: Not an issue for me. Quieter than the stock MJ1200 which it replaced.
Mounting: The suction cup/magnet combination has no problem with my 1/2 in glass. The swivel mount does not allow the pump to be oriented at less than about 45 deg from the mounting surface, which was a bit of a drawback for me.
Flow: The overall amount of flow is great. For $50 it's hard to beat 1200gph at 12 watts and almost no noise. As for the type of flow, I am a little more lukewarm about that. Best way to describe it may be to say what it does not do. It does not push a large amount of water all the way across the tank, or even 1/2 way across. I would not put 2 of these at opposite ends of my tank and expect to see the effects of colliding flows in the center, which is what I get from my OFMJ900s. Nor does it create a wide, evenly dispersed expanding cone of gentle flow. The flow is very wide, it is just not evenly dispersed at all. Similar to what Herndog described, it is more like it creates 3 separate currents, each about 2-3 inches in diameter, angled away from the direction in which the pump is oriented at about 30 - 45 deg. These individual currents are quite strong. You could place a coral directly in front of the pump with perfect safety, but if one is off to the side and in the wrong spot, the flow might be too much even 6-8 inches away. I got around this by simply rotating the pump on its swivel, directing the higher flow currents away from any individual corals, but this might not work for any set up.
Again, overall I am very pleased, especially given the price, but not completely without reservations. I may try putting some gutter guard over the large openings on the front to see if that evens things out a bit.
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