Ph down has been used and it is VERY effective. +10 cm in 3 days in spite of high temperatures !
I also installed an iriso system (a dropper irigation system) with two 120L trash cans.
Love that Purple Haze. Jimi would be proud. They really bring out the fall colors beautifully. Nice job. My first bought seeds from AmDam in 1987 were purple star #1. I think they still sell it as purple #1.
@Newbie_uk, Hey ! thanks for the comment :)
The 164 cm one would be 100+ grams, but the one with the colours (maybe a Purple Haze) will be around 40 grams I think.