Friends, help me figure out my problem!!!!!?

yo mate, theck this site https://ghostseedlab.com or the facebook page GS.lab there is lot off informations for cannabis pathologys, excess and pathologys and how treat them ;) goodGrowing bro

Assuming Cal-Mag: More on the calcium side than magnesium based on your photos. On the magnesium side the bottom fans slowly progress to yellow. The calcium side add the burning you are showing. https://www.growweedeasy.com/cannabis-plant-problems/calcium-deficiency https://www.growweedeasy.com/cannabis-plant-problems/magnesium-deficiency The problems and the Fix: https://www.advancednutrients.com/articles/calcium-magnesium-deficiencies-cannabis/

You mention tap water PH but what about when nutrients are added. Mine lower the PH of my water. If the basic survival conditions aren't met then she will suffer, it's not always nutrients so you have to rule those out first. Light power and distance, PH, humidity, air circulation, temps, watering. Yellowing at tips and between the veins is a magnesium deficiency, even possible zinc or iron. Check all your basics and feed her

Yo GhettoStyle Your current stats: pH = 6.0 - That’s perfect, no stress there. EC = 0.4 mS/cm - That’s only 200 ppm (500 scale), way too low for DWC in week 4 veg. Your girl’s tryna eat and she’s gettin’ salad instead of steak. DLI = 15, PPFD = 230 - Light's on the low side but not terrible—your plant’s not pushin' hard, but still needs more juice to build strong structure. Nutes used: 2 mL/L CANNA Aqua Vega 1.5 mL/L CalMag 2.0 That’s a baby dose, fam. The Real Issue: You’re underfeeding overall. That low EC tells the story, your plant’s starving, not just for Cal-Mag, but for base NPK too. Cal-Mag is probably fine at 1.5 mL/L for now. You already bumped your EC from 0.2 to 0.4 with the mix. But your total EC should be 0.8–1.2 mS/cm right now in DWC week 4 veg. You can bump CANNA Aqua Vega up to 3–4 mL/L slowly. That’ll raise EC into the sweet zone and get her back on track. How to Fix It: Mix fresh nute solution starting with your tap water (EC 0.2). Add 1.5 mL/L CalMag 2.0. Add CANNA Aqua Vega, starting at 3 mL/L—then check EC. Goal: hit 0.8–1.0 EC total. If it's still low, go to 4 mL/L. Keep pH locked at 5.8–6.0. Watch how she responds over 2–3 days. What To Watch For: If new growth comes in healthy , you nailed it. Still see issues? Might be leftover deficiency signs, takes a few days to clear. If EC drops fast? She’s eating hard, feed more. If EC rises? She’s stressed or overfed, back off a bit.

I grow DWC. At this stage I would be at an EC of about 1.0 and my DLI would be about 15. It would seem to me your under in nutrients. Not familiar with what you’re using, but it may take some tweaking to get it right. The ph should stay between 5.8 and 6.2 for best results.

lower your tap waters ph. 7 can be high even in organics. i recently had to start adding drops of lemon juice because i wasnt getting enough potassium uptake. which i think is what your leaves are showing. if youre in synthetics or hydro and soilless like coco then you should be aiming for 5.8- 6.2 if in soil and organics then 6-7 ph is fine but i aim for 6.2 -6.8. you can look up nutrient uptake charts based on ph and that can be helpful to determine maybe whats not getting absorbed with your current ph level. also dechlorinating your water can do wonders for the plant and prevent future confusion on the