Try the search function. This is at least the 3rd thread in the last week from new members asking the same questions. Using the search will save you a ton of time, and give you all kinds of info in the forum.
Not trying to be a jerk....just helping you out on the forum.
There are differing views on the subject, but I do personally keep them in a 3 day dark period. I only water once on the second day too, I am a hydro grower.
Hope your nugs are what you wanted them to be and more.....
Happy growing
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