That Is a huge system ...I agree. Once Nitrates are zero, a maintenance dose(the "week one" dose on bottle) would mean approx 30mls or less in 500gallons per day to maintain zero nitrates. It is available in very large sizes which make it quite cost efficient. The one gallon size would treat 500 gallons of water for nearly 6 months reducing the cost significantly per month or per 500ml bottle depending on how you look at it.
-Brad
Last edited by Tailored Aquatics; 08-31-2009 at 06:44 AM.
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