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Old 10-02-2006, 10:24 AM   #1
reefmaker1
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Question

Coralife220 "needle wheel or venturi"


I,ve been searchinf some time now for a good skimmer and wanted to noe what the differance between the Coralife220 with venturi system, and the Coralife220 with needlewheel system besides $50 price differance.
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Old 10-02-2006, 10:29 AM   #2
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my coralife has a needle wheel..dont know the difference but this one was recommeded to me
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Old 10-02-2006, 10:51 AM   #3
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i would prefer the venturi model over the needlewheel one. i prefer pressure driven skimmers over the needlewheel models. they are less finicky over water level differences in the sump.

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Old 10-02-2006, 11:27 AM   #4
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Surprisingly I actually have to disagree with Geoff on this one (I thought he would go for the other one). I would much rather have the needle wheel one because it chops up all the bubbles to make a fine foam, where unless you get a huge pump the Venturi model will not.

I've found Venturi skimmers really only work well with a huge pump, and I bet stock this skimmer does not come with one.

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Old 10-02-2006, 12:03 PM   #5
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I would have to agree on the needle wheel for a smaller skimmer like this.
However the venturi on a larger more powerful skimmer could be better.

So for this descision I say needle wheel! Plus it will probably be quieter
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Old 10-02-2006, 12:04 PM   #6
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If you want a venturi then you need to sink the cash for a bigger pump. At least a Mag5. I just purchased the 120NW. Can't wait to see how it works. I have heard good things about this skimmer. It's about time they produce an effective and reasonabley priced skimmer.
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Old 10-02-2006, 12:15 PM   #7
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Isnt a needle wheel more effective at making finer bubbles regardless of what pump you use?

Same size pump vs same size pump comparisons???
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Old 10-02-2006, 12:15 PM   #8
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wouldnt the inconsistencies of water levels in sump can easily be taken care of by setting up a baffle? I do agree that fluctuating water levels in a sump make it a pain to dial in a needlewheel but once that problem is solved needlewheels work great
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Old 10-02-2006, 12:17 PM   #9
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wouldnt the inconsistencies of water levels in sump can easily be taken care of by setting up a baffle? I do agree that fluctuating water levels in a sump make it a pain to dial in a needlewheel but once that problem is solved needlewheels work great
Yes. The first consideration i amke in any sump is the skimmer section and how high i want the water to be.
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Old 10-02-2006, 12:27 PM   #10
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Isnt a needle wheel more effective at making finer bubbles regardless of what pump you use?

Same size pump vs same size pump comparisons???
I think venturi skimmers are more comprable to becketts, and I think they have the same draw back, if you don't really force water through there they seem to end up with large bubbles.

A needlewheel on the other hand uses a venturi to draw the air in, then thrashes it with a pump impeller to make the bubbles super small.

Technically the faster water goes through a nedlewheel the bigger the bubbles, I think this is one major drawback of these skimmers, and probably why the ones for bigger tanks are so huge.

This is also the reason I always reccomend a Beckett for a large tank, and why a needlewheel works fine for smaller tanks.

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Old 10-02-2006, 12:51 PM   #11
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Originally Posted by reefmaker1 View Post
I,ve been searchinf some time now for a good skimmer and wanted to noe what the differance between the Coralife220 with venturi system, and the Coralife220 with needlewheel system besides $50 price differance.

the venturi model does not come with a pump so it is cheaper.
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Old 10-02-2006, 02:37 PM   #12
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I know my ASM needle wheel works great. And it actually is BOTH a needlewheel and venturi. It has a venturi inlet on the pump and the needlewheel chops up the air into fine little bubbles. My vote is on the needlewheel, works great.
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Old 10-02-2006, 05:24 PM   #13
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I like my needlewheel Coralife!
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Old 10-02-2006, 07:18 PM   #14
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Dang, and I got all excited when I saw a new coralife220 venturi on ebay for only $107 Buy It Now. I didn't realize you had to buy a pump. the 220 with needlewheel was $164 Buy It Now.
Is a coralife220 good for a 55gal or should I go coralife125
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Old 10-02-2006, 07:48 PM   #15
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Originally Posted by reefmaker1 View Post
Dang, and I got all excited when I saw a new coralife220 venturi on ebay for only $107 Buy It Now. I didn't realize you had to buy a pump. the 220 with needlewheel was $164 Buy It Now.
Is a coralife220 good for a 55gal or should I go coralife125
The bigger the better. If the 220 fits your budget get it over the 125!!
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