yelow is spreading

Hey 👋 I do agree, you are over feeding… I found a page with most popular deficiencies & methods to help… more specific: I guess you are lacking iron due to to much nutrients in your soil. Maybe following link will help: https://sensiseeds.com/de/blog/wie-man-die-sieben-haufigsten-defizite-von-cannabispflanzen-anhand-von-blattsymptomen-erkennt/ Hope this helped 👊🍀

Yo bro, that yellowing looks like classic nute burn, especially since it got worse after you fed more. Been there! With CANNA Terra Pro Plus and Light-Mix, they can hold onto salts a bit, so it’s easy to go overboard even if it doesn’t seem like it at first. If the yellow is starting at the tips and working in, that’s usually too much feed, not too little. I’d chill on the nutes for now and maybe give them a light flush with pH’d water to clear things out a bit. Check your runoff EC if you can,it’ll tell you a lot. Also, keep an eye on your light distance so if it's too close it could be adding stress, especially with the recent LST and topping. Plants can get a little cranky from all that at once. Since you’re flipping in a couple days, now’s the time to let them bounce back. Better to go into bloom with a healthy green plant than chasing deficiencies or burns in stretch.

Hey Growmie, From the looks of that new growth turning yellow (starting at the tips and spreading), it seems like you're dealing with a nutrient issue, but not from underfeeding, more likely over-fertilization or a pH imbalance causing nutrient lockout. What’s likely going on: Nutrient Burn: The fact that it got worse after upping the feed is a strong sign you're overfeeding. Burn usually starts at the tips and creeps inward. pH Lockout: If your pH is off (especially too high), your plant can’t absorb key micronutrients like iron or zinc , even if they're present. Iron Deficiency Symptoms: Yellowing new leaves with green veins is classic, and again, often caused by pH issues, not a lack of iron itself. What you should do: Flush with clean, pH-balanced water (6.0–6.5 if you’re in soil) to clear out excess salts. Check your runoff pH if it’s out of range, that’s probably the root cause. Ease off the nutes for a few days and monitor. Next feed, go with 1/4 to 1/2 strength max. Make sure your temps and airflow are on point. Environmental stress can make it worse.You’re doing the right thing by observing and adjusting, just gotta dial it in. Keep a close eye on the new growth over the next few days; it’ll tell you if you're back on track. Happy growing!