SOIL Plant number 1 is sad

[Coolbogge]

What is wrong with my plant 😕 Is it broad mites? If so or if not, what should I do next?

 

[Rwise]

Read these links;
https://www.growweedeasy.com/cannabis-plant-problems/calcium-deficiency
https://www.growweedeasy.com/cannabis-plant-problems/manganese-deficiency
https://www.growweedeasy.com/cannabis-plant-problems/potassium-deficiency
https://www.growweedeasy.com/cannabis-plant-problems/broad-mites

 

[Coolbogge]

A closer look

 

[UndergroundFarmer]

I don't think it's mites. (Lucky you!) Unfortunately, this is hitting in early flower. Are you amending your soil at all or doing a "just add water grow"? What are you watering them with? Know where to get some worm castings? Finally, do you have a soil pH meter? I ask all that because it looks like a nutrient deficiency that could be an actual deficiency but is more likely a nutrient lockout caused by soil pH being a bit off. This is bad right now because flowering plants demand a lot of nutrients, especially phosphorus and potassium. The plant will let the leaves go to hell to give the buds all it can if it can't absorb enough of what it needs for the whole plant. If you're adjusting the pH of your water, stop unless you're getting 9.0 or higher out of the tap. Those chemicals used to adjust pH can build up in soil and cause the problems you're seeing now. If you're using reverse-osmosis water, you could very easily be causing a calcium deficiency because normal hard tap water has calcium and other micronutrients dissolved in it already. Worm castings can help with nutrient deficiencies and also boost the soil biology to help pH become self-governing.

 

[Blowdout2269]

UndergroundFarmer has give you some great advice...
...considering you have given us very little information about your grow.