First Grow Cookies Gelato Auto and Sweet Zz Auto

Its the end of week 5 and I think its safe to say that all plants are atleast in preflower now. The Sweet Zz 1 is still ahead of the other plants and is slowly building her first budsites. Over the week i did some defoliation on all plants to get as many nodes exposed to the light as possible. I also did some more LST with Cookies Gelato 2&3 and decided to start doing some LST with Cookies Gelato 1 as well. On day 31 I repositioned my LED to hang 40cm above the canopy and increased the light intensity to 75% measuring roundabout 40.000 LUX right above my plants. On day 34 I noticed that some plants show signs of a deficiency. I then decided to feed my plants with 100% of the recommended feeding shedule from biobizz instead of the 50% I used before. I also ordered some CalMag online and will add some with my next watering. If anyone has an idea what my problem could be i would be very thankfull. I will include some photos in the end.