Advice needed

Hello,

I am a newer grower with about 6 harvests under my belt. I have gone from 1 and 2 plants to a bigger set up with a tent and 7 plants. I have 2 2000W led lights. Exhaust vents. Humidifier and track temperature control. I screwed up and numbered my plants. All different genetics. Garila Glue,Big Bud,skunk #1, Cali Kish and final Bruce Banner. The plants are almost 7 weeks old and I noticed they would burn with the smallest amount of “Garden Rich root and grow” so I stopped using it. The plants look great. About 2 weeks ago I started seeing burn on the ends of Leif’s. I cleared the damage and raised the lights. Over the past 3 days I have been seeing the same thing happening. The tent stays between 68 and 70% f and humidity between 45 and 50. I only use rain water and find myself watering about everyday. The death I am seeing is on the top nodes. The canopy is right between 625-690 umLu’s which is low from what I’ve read. Here are the pictures.Looking for help from experienced growers. Also I did a Ph test a week ago and was right at 6.0.
Also my Skunk #1 has 2 main nodes that almost look like completely different plants. The one side really healthy and the other a lot of Leif damage.

I’m using Miracle Grow moisture control mix for the first time also

Leaves are "tacoing" from too much heat and possibly too much direct wind. Your numbers are off on your thread, looks like your temps are ranging from 69-108 °F 20-94% RH.

Keep humidity around 50% marker and try getting temps between 70-80 °F. Once you've completed that you can move onto trying new things or changing other stuff.


There should be a reset button on the top/back of that device, I'd reset and try to improve the numbers.

Thank you I didn’t know wind could cause that. I did just add a fan pointing downward. Should I move the fan to ground level?