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Old 05-03-2007, 03:48 AM   #3 (permalink)
naldopr
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Join Date: Apr 2007
Location: poinciana
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always go by manufacturer recommendations!
To accommodate the 18 watt you will need a power head, pump, or canister filter with a flow rate of 200 to 400 gallons per hour, more than that will not be abble to kill bacteria in 100%
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