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Old 11-15-2013, 05:01 PM   #11
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Don't need the wave maker at all. One on the back glass, one on each side. Point side a at the front of the tank and side b at the back of the tank.
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Old 11-15-2013, 05:11 PM   #12
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Don't need the wave maker at all. One on the back glass, one on each side. Point side a at the front of the tank and side b at the back of the tank.
I've tried so many positions with the 2 on the sides, but the problem is with the 850's, they're too powerful running at the same time. The reason I wanted to run a smaller 550 on the back, and alternate the 850's, is because it would lessen the flow a little bit, but not cut it in half. An 850 plus a 550, as oppose to 2 850's...
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Old 11-15-2013, 05:21 PM   #13
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And if I point 1 at the front and 1 at the back, won't it give it a "whirlpool" effect? I thought that wasn't really desired...
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Old 11-15-2013, 05:40 PM   #14
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I aim my two returns at each other causing chaotic flow movement. This is the type found on the reef.
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Old 11-15-2013, 06:48 PM   #15
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It shouldn't make a whirlpool. I do this in my tank with a powerhead on the back without issues. Like stated above, pointing them at one another will work as well.
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Old 11-15-2013, 06:53 PM   #16
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Two types of flow on the reef, a slow tidal surge and random flow. It's the random flow that's the most important in your tank. IMO I try to randomize the flow as much as I can. Some corals like to thrash around, other like a gentler flow, you need areas that do both. Sometimes just placing a rock near a coral will modify the flow pattern to the corals benefit. There is a fair mount of trial and error here.
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Old 11-15-2013, 09:27 PM   #17
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I came home and my hammer coral looked like crap. I played around with the power heads. I'm getting completely frustrated. I should have gotten less powerful Koralias and ran them simultaneously, which was my initial intention but it is just too much flow. I'm running my 850's alternating for now, as I am trying to get my hammer looking good again. Still undecided as to if I'm going to buy a MP10... Looking like I should at this point. Seems as though the 40 breeders because they are so short and shallow almost amplify the flow. Never would have guessed...
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Old 11-15-2013, 10:04 PM   #18
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Have you tried simply replacing one of the 850 with the 550 you have already?
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Old 11-15-2013, 10:07 PM   #19
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I came home and my hammer coral looked like crap. I played around with the power heads. I'm getting completely frustrated. I should have gotten less powerful Koralias and ran them simultaneously, which was my initial intention but it is just too much flow. I'm running my 850's alternating for now, as I am trying to get my hammer looking good again. Still undecided as to if I'm going to buy a MP10... Looking like I should at this point. Seems as though the 40 breeders because they are so short and shallow almost amplify the flow. Never would have guessed...
I have both kinds and I agree with your assessment. The Korilla fans are much more directional than the MP10. The MP10 works great in our 38 gallon at my office. I just hate its price tag, but it is deluxe in every way.
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Old 11-15-2013, 10:12 PM   #20
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Have you tried simply replacing one of the 850 with the 550 you have already?
I don't want to do that because one side of the flow will dominate the other.
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