You should go by the color of the pistils and trichomes to estimate when to stop your nutes and start your flush. When about 50% of the pistils have turned brown/red and start to curl all the ways in you should start checking the trichome color. Once you see about 50% half cloudy trichome you should start your flush ideally about 2 weeks before harvest give or take a few days. Depending on what type of high you like will determine at what stage of color change of the trichomes to harvest her. Mostly cloudy/milky with 5% to 30% amber is usually a good range. The more amber the more of a body high you'll have off her. Is this just one plant or more than one? Also it would be a good idea to try to lower your humidity if possible.
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