What needs to be done for the lack of nutes, I have some but didn't wanna use with soil

Yeah looks to need the full spectrum of nutrients.. yellowing lowers is obviously N and the red coloration of main stems not just petioles is a general lack of nutes in this scenario

Differently som Cal mag and how high are you lights and maybe some defoliation. It looks very crowded. Need more info And maybe some better pics of you can. Let me know how it goes. Happy Growing 😊

Always check the pH of your water and runoff from the pot before you start throwing nutrients at the plant. If both aren't between 6-7, you need to sort out the pot's pH problem. If pH is normal, check the roots. if the roots are still white, healthy, and not root bound, check under some leaves and see if you see pests. If you don't see pests, you have a nutrient problem. If it is a nutrient deficiency, find some 4-4-4 compost tea from Dr. Earth, or some other organic liquid fertilizer. Mix it according to the directions and use it as a foliar spray. This isn't a fix for your soil, just a way to get nutrients into it as soon as possible. You'll also need to get dry amendments for your soil while you foliar spray to actually fix the problem. Organic dry nutrients can take weeks to break down before the plant can take it in and use it. Hence why you'll have to foliar spray for a couple weeks. I recommend BuildASoil's Craft Blend. The stuff is the bee's knees and a one bag fixes everything sort of dry amendment.

Yellowing is normally nitrogen but id just grab something that give u everything i use greenrushnutrients easy to use an organic white flys could also be the issue thats the problem with living soil is ull have living bugs u may be able to find a solution on google for them like a trap just be careful u dont wanna kill ur good bugs

Any soil like that is not going to last an entire grow. This plant needs all the nutes - nitrogen, phosphorus, potassium, calcium, magnesium - and all the micronutrients as well. Get yourself some basic cannabis nutrients and start feeding them as soon as you can or you'll lose the whole grow. Whiteflies (and spidermites and thrips and aphids) can be dealt with by getting either some Dr. Zymes Eliminator or some Spinosad... both are organic and both will take care of any stage of these insects - eggs, larvae, adult - plus you can use either all the way up to harvest if need be without affecting the flowers or taste ... Good luck...