Purple Skunk Auto

You got some nutrients burn going on the tips, need to cut back on the feed likely half what you're feeding them now, and yes the deep color is a sign of nitrogen toxicity I would flush but you also might be locked out on the light one as well do to ph, looks like you're running coco and clay balls and if that so I'm my buddy who is a veteran growers with autopots and coco told me before I started with my autopots that clay balls create ph fluctuations in the coco and aren't really that great for that system...You need to be a experienced grower to pull off the clay and coco to keep up on the ph fluctuations...Also my first time in coco was a disaster because I didn't buffer my coco properly with Calmag and I didn't ph the coco property from the start, you could definitely use a flush and I would try to determine what the ph of the coco is before you do so and adjust the flush accordingly...and I would cut back on the nutrients for a bit as well...I switched my autopots over to living soil, worm castings and Gaia ammendments for less stress and hassle...Good luck hope they turn around, just make sure you're ph is on and give them them some calmag to after your flush add it to reservoir

She looks very well. Nice green stems. Well done on sorting your issues out. A wet/damp towel hung from the top of your tent bar will help bring your RH up and will keep like that. Good growing

Feel free to remove any and all shade leaves at any point in time. I remove any leaves that cover potential branch and bud nodes throughout the entirety of my grow. I also remove the top to leaves of every branch, including the main stalk, when the plant is as little as a couple weeks old. It makes the plant react as if it were topped, but without ever topping it. This means you aren't removing any vertical growth or potential branches. The plant also recovers much faster than if it were topped, so i think it's a win-win. Once the plant is flipped into flower, i always do a heavy defoliation during week three to help with airflow and light. You don't want any leaves covering your nuggies. Some people even remove practically every leaf on their plant during this defoliation and end up with fat buds! So, the people that say you need all the leaves your plant produces, are just wrong. In my personal opinion, that is.