Sadly the Zkittlez OG never showed.
I started germinating a second seed of Kmintz on 12.09. - just in case
Did a top dressing with T.A. Silicate on 16.09.
Added 3.2g to both pots (4g/10L Soil)
I dug out the Zkittlez OG seed on 18.09. after the second Kmintz showed. It never germinated, the seed was still fully closed