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Old 10-15-2004, 10:22 PM   #1
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UGF and powerheads needed in SW tank??

I'm in the process of converting a FW to a SW tank. it's a 90gal tank. I've read that the water circulation needs to be optimal in a SW tank, but wouldn't the sand be sucked up in the UGF? I'm planning on getting a W/D filter/ protein skimmer set up, so should I just discard the powerheads and UGF?
Any reply would be greatly appreciated.
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Old 10-15-2004, 10:25 PM   #2
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most people do not recommend UGF anymore for SW.

Almost everyone here agrees that LR (1.5 lb per gallon) and LS (1 to 3" deep) with 10x flow (PH and/or sump) with a good skimmer is all you need. No W/D, no UGF
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Old 10-16-2004, 09:18 AM   #3
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Ya, UGF is a big no-no in sw.
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Old 10-16-2004, 12:05 PM   #4
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Lose the UGF and just put the PH's in there for water movement!
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Old 10-16-2004, 01:25 PM   #5
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I have 2 powerheads, is this enough? (90 gal.)
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Old 10-16-2004, 01:33 PM   #6
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Depends what the GPH are on them?
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Old 10-16-2004, 01:38 PM   #7
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270 gph each (2 of them in a 90 gal) enough?
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Old 10-16-2004, 01:46 PM   #8
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That is only turning your tank 6 times per hour the norm is about 10-14 per hour
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Old 10-16-2004, 02:22 PM   #9
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Yeah those powerheads are a little weak...but are you going with a sump? Because the return pump from the sump to the display tank is going to count towards your total gph. Skimmers, however, do not count.
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Old 10-16-2004, 03:12 PM   #10
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yup, i'm probably gonna go with a sump. I still need to buy the return pump. Any recommendations on a return pump?
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