Critical in new custom soil recipe

The week started by finishing the foliar spray with neem oil and soapnut which I did 5 days in a row. After a day of rest I then threw the scrog net over the plants. The older sisters of the Criticals stand on the outside, the younger ones on the inside, so that by bending I can achieve an even height of the plants. Once I've filled the screen sufficiently, I'll go into bloom. The 4 plants of this grow are in different soil. 2 stand in my proven soil mix in which I'm only testing a different source of P. 2 others are in recycled soil, which is the first time I'm testing this "recipe" like this. The plants in the recycled soil are noticeably smaller than the others and are showing signs of nutrient deficiencies while the plants in the proven soil only showing old signs of deficiencies and thrips on lower leafs with new leafs looking healty. So the recipe doesn't seem to work. Apart from that, the plants got a sprouted seeds tea with fresh aloe and spirulina algae this week. The lights are set so that all plants get around 25-32 DLI. VPD fluctuates between 1.04 and 1.08 during the day. Everything is set to dehumidify at night, since VPD then doesn't matter.