Keeping A Grow Journal
Journals are the cheapest upgrade an auto grower can make, since a three month cycle means you forget what you did by the time the next run hits the same week. I write down the date, watering volume, feed strength, and one line about how the plant looks. A simple printable template built around the auto timeline, with the milestones that matter marked out, is available at https://turboautoflowerseeds.com and takes a minute a day. Comparing two runs side by side taught me more than any video.
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