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@hannabis420, your soil should have some nutrients in it. Don't over do it with the cal-mag, you may need to add more N-P-K nutrients though, if the yellowing continues.
@CanadianFillmore, whats your thoughts the soil in the pot has some nutrients in it, (fox farms OF), and I give cal mag every week, you think I should introduce different nutrients, or just more heavy/often feedings of cal-mag