Day 66/Day 22 of Flower: Finally made it to Week 4 of Flower which means I get to introduce BUD-XL to my nutrient line. Girls were hand fed tonight, saturated with fresh nutes. Tips were already showing signs of nutrient burn going into week 4, so without the former veg nutes, who knows how bad they're about to get. Question: I read defoliating throughout week 3 of flower is around the last time you should trim. I cleaned up the bottom real well, but do you think I trimmed too many fan leaves up top? A lot my bud sites have one fan leaves and the nodes under it have none at all? Throughout this grow, anytime, I've trimmed, it has had zero effect. I think that's because its receiving nutrients twice a day consistently. Regardless, should these leaves up top have stayed on to provide healthier sites or as an extra resource for food when needed? Thanks y'all! Day 69 Update (3/21): First time the grow has A burnt tips across the board. I read this is common during weeks 4-5 of flower, but I also know it can get out of hand real quick. I'll be measuring the runoff over next feeding and determine what the best course of action is. I believe for High Frequency Fertigation in Coco, you have to be careful how you dilute your substrate, and I also think you need to always include some type of Cal Mag in your water, even if just topping off reservoir. Going to be tricky as I enter into Week 5 where I'm supposed to add @House & Garden's Top Booster to my feeding line for a week. However, it's only one week, and after that, H&Gs line goes down considerably ( Pic in Gallery ) Question: Do I keep the nutrient line the same and increase fertigation, or do I dial down the nutrient strength? 3/24/21 Update: That does it for Week 4. Definite signs of nutrient burn with the tips and even some brown coloring leaves. I also don't think the buds are growing as fast as I see others by Week 4 and that's with four weeks of Big Bud and one week of Bud XL. I finally waved the white flag and topped off the reservoir with 2 gallons of fresh water and 2 ml of Cal Mag. Brought my intake down from 2.02 to 1.47 Brought my drainage down from 2.99 to 2.23. Debating on whether to give it one more diluted feed or make a fresh batch for week 5 where I'm supposed to add in Top Booster...Going to be a rough week trying to maintain any significant shock or stress to the plants with the nutrient changes/dilution. Come on Buds!!!! You've been doing so well, now fatten up! P.S. Is the video in the first slot of gallery working?