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#1
02-27-2008, 06:43 PM
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Turnover rates & waterflow
What are you folks running for flow and are you happy with it?
Myself I had 2xKoralia 4's and about 300GPH through my sump return. I added 2xKoarlia 2's to give a little more light flow over my rockwork.. I had debated two more #4's but thought that would be a little too disturbing. I looked at the votechs but at the price ~$400 I could not really justify that money.. I like the concept but for strict linear flow.. not my cup of tea... perhaps a pair on controllers as wavemakers.. then maybe. Anyhow.. just thinking out loud I guess 
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- Greg 90G : Light - Tek 6xT5 | Skim - EuroReef RS135 | Flow - 2xVortech MP40W | Control - Reef Keeper 2 
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#2
02-27-2008, 06:51 PM
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I am pleased with the Koralias. I've recently been considering a closed loop. Drilling so many holes makes me nervous though
 But to answer your question, I have two Koralia 3's in my 55G.
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~Drew 10G Nano * 10G Sump * Deltec MCE 600 Skimmer * JBL Viper 150w MH * Zeovit * Vortech MP40W Millions long for immortality who do not know what to do with themselves on a rainy Sunday afternoon. ~S. Ertz 
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#4
02-27-2008, 07:17 PM
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On my upcoming tank I'll have a sequence 5800 CL, a tunze wavebox and about 500gph return from the sump on a 115G tank.
On my nano I have about 700GPH via a T3 pump.
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32"x32"x20" Cube-ish tank
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#5
02-27-2008, 07:23 PM
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Between the return and CL I'm turning my display by 30+ times and can't see wanting more. Running a mixed reef so along with the SPS I've got a clam, LPS and soft and getting difficult to find areas of low/mod flow for them.
Little side note, bearing went on my CL pump so had it shut down for about a week. Turn over dropped to about 7 times and even after the week, polyp extension on the SPS was about the same as with the CL. Can't comment longer term or effects on growth.
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#6
02-28-2008, 02:29 AM
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I prefer 6-7x per hour turnover through the sump.
I like LPS corals, and they don't like high flow from the powerheads. BUT, the turnover rate from powerheads is VERY different if you're using propeller powerheads (like Tunze and Koralia or MJ mods). You can go about 2x the turnover from propeller PHs versus impeller PHs. I like about 10x per hour turnover from impeller powerheads, or about 20x turnover from propeller PHs.
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#7
02-28-2008, 07:44 AM
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Taking pump specs at face value I have 68x in the softie tank and 46x in the LPS tank, both are BB. Actual flow I estimate at about 75% of those numbers.
You just can't have too much flow.
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