My small cabinet LST grow is looking like it will grow more than expected so i will probably add in a screen to prevent the tops from growing into the light. I wanted to ask how much space i should have between the lights and the screen. I have total 300W CFLs. Im just not sure how much the buds will still grow upwards even after they have been tied down. Is there a general rule on how to determine the space? I just know you should get them as close as possible without the heat being an issue.

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