I would add some cal-mag into the mix. I'm telling you it clears up most deficiency problems. Ca and Mg are right on the edge at 6.5 (for soil) and any slight variation in PH and you end up missing those elements. 6.4 and you've missed it.

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Kali Mist/Colombian Red Haze journal

Here's my last grow AK47 and PPP in hempy journal