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Old 03-11-2008, 12:57 AM   #11
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Originally Posted by mandown123 View Post
I have a 30 gallon. Is it ok to just have the return from my sump as the only flow in my tank? I am kind of confused as to how much current is a good amount.
In theory, you could probably just use the return flow, but the issue is more where the flow is coming from. Not sure if you have a reef or fish-only tank, but with reef you want chaotic "random" flow. Most folks achieve this by having at least two, sometimes 3 or more, locations from where the flow is coming from. By making the flow patterns of these separate powerheads collide with each other, or bounce off rocks or the glass, you can at least break up the flow and not make it a jet blast pointing at something. That's what you're trying to do... simulate the randomness of the ocean as much as you can in an enclosed space. You'll never really get a random flow pattern, but at least you can break it up so it's kind of a "swirling" pattern.

Hope that makes sense.
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Old 03-12-2008, 12:51 AM   #12
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Powerheads? Think flow, Flow, FLOW! In my 210 I currently have two quiet one 6000 (one for each return), 2 Seio M1100, 2 Hydor Koralia 3, 2 Hydor Koralia 2, and 2 Maxi Jet 1200. You want a chaotic not laminar flow in the tank. The old rule of 10 to 15 x per hour turnover rate is out the door. Try more like 25 to 30 x per hour or more. That much current help clean the tank, removes wastes from sessile invertabrate as well as brining them both food and oxygen. In my system with 8000 gph turn over and I stll have troubles with a few settling areas. Just get the flow up there and your tanks will show incredible growth rates.
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Old 03-13-2008, 03:33 PM   #13
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WOW!! I just order two of the hydro koralia 3's and I can't believe the price differences on line. Doctor's foster and smith had them for approximately $37 and some change - on sale. I got mine for $31.89 from Champion Lighting & Supply :: Pumps :: Hydor Koralia :: Hydor Koralia 3 Circulation Pump

Can't wait for my goodies! Thanks very much for the input folks!
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Old 03-13-2008, 04:06 PM   #14
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Yeah... DrFosterSmith definitely isn't the cheapest of the online retailers, but from a customer service standpoint they can't be beat. The only time they come in cheaper is if you're buying heavy things since their shipping is based on $ and not weight.

Think you'll be very happy with the Koralias.
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Old 03-15-2008, 07:30 PM   #15
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I have a 40 gal with a Rio 1200 return, and one maxijet 900. I have plenty of flow in my tank. I may have too much actually...my frags of xenia sometimes blow off of their frag rocks.
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Old 03-19-2008, 05:07 PM   #16
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WooHoo! Powerheads are in.....where in the tank is the best placement? Low in the tank? Mid tank?? and what direction should the flow be pointing? Up? Down??

Thank you!
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Old 03-19-2008, 06:43 PM   #17
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I have mine on opposite sides of the tank facing towards the middle top of the tank. That give me great surface agitation and flow in the tank.
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Old 03-19-2008, 11:34 PM   #18
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I have 2 hydor koralia 2's plus a mag7 Return pump for my 46g bow. My maxi-jet is used for my saltwater mixing tub. Big Als is having a sale on Hydors they are pretty competitive with prices and will beat anyone's price by 5%
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Old 03-20-2008, 10:21 AM   #19
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Hey MsBeanCtr, congrats on the new flow! As far as best placement, may I ask you the size of your tank and the footprint? I may have missed it, but I didnt see this info.
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Old 03-20-2008, 10:39 AM   #20
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I have a 30gallon long. Currently using the standard return that came with my wetdry. I watched a video on Youtube last night of this guys tank (it was a nano) and his soft corals and anemones were moving so naturally. I was wondering if anyone knew of a great powerhead setup I could use to achieve very realistic ocean conditions and keep my fishys happy.
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