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As kmarch says, pay attention to geography. In many places of the country the light is so bright that a sheer curtain is necessary to prevent plants from burning. But here in the light-starved northeast, plants must be right up against the glass or near the glass to absorb all the light they can get.
Also, different mediums work better in different parts of the country. Try to ascertain what mediums growers are using in your own area.
Last edited by 11Orchid126; 10-10-2008 at 02:43 PM.
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