First Grow Cookies Gelato Auto and Sweet Zz Auto

Today is day 42 and this week has been extremly hot and humid again. I think my plants suffered a bit under these conditions but my main concerns are that the deficiency signs i noticed last week are becoming more and more visible on all plants. Sweet Zz 1 is turning very yellowish and all other plants have these weird brown spots on some leaves.(see last weeks pictures) I added CalMag to every watering this week to hopefully combat some of the deficiencies but only time will tell if it works for me. Due to the fact that I only fed every second watering i feel like I am a little behind the feeding shedule at this point and therefore will start adding some more nutrients next week. I am thinking about feeding every watering for the next few weeks to see if something is changing. Over the week I did some minor defoliation on all plants and readjusted some of the training sticks. As always thank you for reading and tips would be appreciated. Happy growing.