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Old 02-03-2009, 02:43 AM
sixto sixto is offline
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Join Date: Feb 2009
Posts: 4
Default how often change the nutrient solution

how often do you change the nutrient solution, in your 11 plant garden? every week, every 2 weeks, once a month? probably as soon as the nutrients start getting low? then you need a tds meter huh?

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