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Old 02-03-2009, 07:46 AM
Ron Ron is offline
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Join Date: Jan 2009
Posts: 1,285

It depends on what medium you use. grow rocks hold a lot of oxygen so you can water every 1/2 hour. Rockwool holds moisture more so you can water less maybe every hour. And it also depends on the size of your plants. Small plants don't need to be watered as often as larger plants. You might be a last time grower after that answer.
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