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Old 03-20-2011, 06:50 PM   #1
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water circulation

I currently have a 90 gallon FOWLR tank. The tank has a Koralia 3 powerhead that produce about 850gph on the left side of the tank. The right side of the tank has about 700 – 850gph from the return pump. I am concern about whether the tank has enough water circulation. I have a Rio Aqua that I never used so I was wondering if it would be too much to add another powerhead to the tank. The Rio is rate has a 420gph. Please advice. The Rio Aqua 1400 is 420 gph http://www. fosterandsmithaquatics.com/ product/ prod_display.cfm? pcatid=467 Koralia 3 http://www.amazon.com/KORALIA- UL-850-gph-6-5W/dp/B000O3AQZC
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Old 03-20-2011, 06:57 PM   #2
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thats more then enough
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Old 03-20-2011, 08:46 PM   #3
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thats more then enough
Any input on placement?
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Old 03-20-2011, 09:41 PM   #4
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i disagree. i would add the other power head and try to accomplish little to no dead spots, or areas void of flow.
the better the water movement, the healthier the tank. 2 koralia 4's (1200gph a piece) wouldn't be too much for a 90 gallon fowlr.
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Old 03-20-2011, 09:49 PM   #5
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i disagree. i would add the other power head and try to accomplish little to no dead spots, or areas void of flow.
the better the water movement, the healthier the tank. 2 koralia 4's (1200gph a piece) wouldn't be too much for a 90 gallon fowlr.
How low can I put the powerhead?
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Old 03-20-2011, 10:17 PM   #6
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as low as you want, and it not suck up sand or sand bed critters.
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Old 03-20-2011, 10:24 PM   #7
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as low as you want, and it not suck up sand or sand bed critters.
The Rio aqua seems too bulky so I am going to get a koralia evolution 1050gph.
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Old 03-20-2011, 10:26 PM   #8
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Originally Posted by mr_X
i disagree. i would add the other power head and try to accomplish little to no dead spots, or areas void of flow.
the better the water movement, the healthier the tank. 2 koralia 4's (1200gph a piece) wouldn't be too much for a 90 gallon fowlr.
I know I have dead spots because I have a macro algae on a LR I bought yesterday and it is not moving. This indicate that the water is not moving
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Old 03-21-2011, 02:31 PM   #9
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2400gph is enough for a 90g as long as doug has stated you have flow around the whole tank,otherwise you can add as many powerheads you like.
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