Purple canoe leaves ??

[Alansace]

Hiya guys first time grower here I'm gardening 8 ball kush, using 600 lights strength, got a de humidifier running with 2 extractor fans temps running at 74c approx, all my plants look different yet all watered the same with same nutrients ?? 2 look great the other 5 vary from ok to worry as the leaves are crispy and dry on some and buds aren't as prolific as my best 1 I've enclosed pics there on week 8 of flower so due very soon ?? Any help much appreciated thanks Al

[Potted]

The toco leaves is from to much heat normally. as for the purple leaves, I have a question have u used any cal mag during the grow? It could also b the strain don’t u know

[Redwasp]

Looks like it could be phosphorous deficiency but you are so close to harvest that I probably would not try to fix it. For a first grow it looks very good. Start checking the trichomes and get ready with the molasses and water to use till the end of the grow. It very well could be nutrient lockout or a deficiency. Next grow just watch your plants and treat each one separately. Some will need more nutrients some will need less.

[Juicyj89]

temps running at 74c approx

74 degrees Celsius?? Is that like 100+ Fahrenheit???

[Juicyj89]

165.2 actually. You’re plants should be dead if that’s the case.

[Alansace]

Lol 74 farenheight I'd be dead with the electric bill

[Juicyj89]

😂😂 okay I just had to make sure!