Girl Scout Cookies - GoG - First Grow

Day 43 - The bottom leaves showing advancing Mg deficiency. Petioles are deep purple, interveinal chlorosis has turned into necrosis. I applied a 50 ppm solution of MgSO4 (Epsom Salt) as a foliar feed after removing the bottom leaves. Hopefully this will get her going in the right direction again. Day 44 - Just noting it is a little cooler in the environment today. Getting colder outside here the the GWN. Nothing to do today, but watch her. Oh, I received my Apogee Quantum detector yesterday, so I made some adjustments to the lights today. Apparently I was hitting them pretty hard, so I dialed back the light to 400 μMol/m2/s (DLI 26); this also contributed to the decrease in temperature as the boards are pretty cool now. Day 45 - Watered today with 2l of an 80ppm Mg solution. I flushed the media on Day 25 after transplanting, and since Mg is easily leached from soilless media I'm pretty sure I leached away too much. I'm trying to not do too much, but I need to get this Mg situation handled. I was hoping a foliar feed would have faster results, but the issue progressed a lot still in a single day. Day 46 - New growth looking good. Hoping that boost of Mg solved that issue now. Tied down the eight main branches so now we'll let her veg another week or two to keep an eye on her nutritional needs. Day 47 - No purpling on new stems and petioles so it looks like adding the extra Mg has made her happy. The damaged fan leaves are getting worse so I'm going to just take them off. I don't want them attracting pests of any kind. Day 48 - Adjusting tie downs to keep the growth as even as possible in this stage of veg. Other than that, just watching her grow. Day 49 - Watered with 1l of (EC 1.0 @ pH 6.0) solution. I increased the Mg in my base solution to 30ppm, and I'll watch for any further signs of deficiency in case further adjustments need to be made.