Wedding Cheesecake Fast Buds Contest

Apologies to anyone who reads through all this, was just a bunch of my notes that ive thrown here for next time. If anyone does it might look like gobbledygook but i get it...sort of 😁😂 Week 10 day 2 - Think I have a magnesium deficiency, some lower leaves are curling and yellowing/brown tips. And upper leaves all have interveinal chlorosis. Going to flush with plain water at 5.8PH and check runoff before doing anything. - Ec Out 1.25 - PH Out 5.83 All looked pretty good so cant work out why. Week 10 day 5 Feel like I have a potassium deficiency PH is 5.89 and EC is 1.35 so all looks fine. Have been using a lot of cal-mag to try and correct lacking coco due to not buffering at start. 1.75ml/l is 0.8ec but maybe too much as recomended cal-mag dose is 1ml/l so will go back down to that. As read cal/mag can cause sodium buildup which can stop plant uptaking potassium so could be that. - Flush medium completely - Reintroduce nutes at 1/2 strength but push forward 2 weeks on nutrient schedule for higher potassium/phosphorous Flushing with PH 5.57 (Wedding cake runoff) - 1.3 Will flush until runoff is around 1/3 of starting EC FINAL EC RUNOFF AFTER FLUSH WC - 0.563 OS - 0.39 -WEDDING CAKE NUTRIENTS 1/2 strength (pushed on to week 8 of flower nutrients)- ***flushed 6 liters through*** 1ml/l cal mag 2ml/l grow 2ml bloom 2ml top max 2.5ml heaven 2ml alg a mic 2.5ml acti vera EC IN 1.76 EC OUT 0.435 PH IN 5.84 Have been foliar feeding cal-mag and seems to have correctee the issue since then. Think its best I dont use too much cal-mag during fertigation and correct is using foliar spray. Lessons for next time at least 👍