First grow ! CBD Auto Cheese

So week 7 has been abit of a struggling I have been combatting a fungus gnat problem with not just these plants every plant in the house and the balcony. Have been treated with mosquito dunks so hopefully that can slow them down will be treating every 10 days. So my autocheese 1 has been showing cloudy tri and about 40-50% orange hairs I have started to begin the flush as it is about 2 weeks off from harvest also has had some nutrient burn. I have changed my nutrient routine and bought some decent quality stuff. Also have gotten cal mag because I have noticed some purpling of the fan leave stems got some as a precaution they seem to be flourishing. My auto cheese 2 has just grown crazy still about a week or so behind number 1 due to stunting. Auto cheese 3 has been stunted a lot but is catching up. If you have any tips of my autos please send them through especially if you think it isn’t ready for harvest in 2 weeks.