Yellow tips

What lights are you running? It is my understanding that too close of lights can cause this… I had the same problem with my grow. I had my lights at 18” as per recommended by light company, however after backing my lights to 24” I seen better growth of buds and leafs began to grow healthier. Hopefully this is helpful.

lamp is too close

If it is only at the top, it is the fault of the light being too close...

c

probably an imbalance or overdose. Not enough info to give more than that. diagnosing from the plant is an indiscrete process, meaning there are usually more than 1 possible answer very often. More infor provides better diagnosis. Knowing what you did over the preceeding weeks and months helps. Ah.. AN... 50,000 products. I'm not looking over that many things. I would suggest you stop reading marketing from marijana branded companies like AN. They mislead, manipulate and their instructions are more about you buying more bottles of their fertilizer than growing good plants. It can work fine. I assume this is soilless or hydro? if so do a weighted average ratio of 1-1-2 NPK and 4-2-1 K-Ca-Mg with about 80-100ppm of S. Overall concentration near 1.2-1.5 EC of those ratios. Ther are online calculators to assis, ther's an app that can take your guaranteed label values and give dosing instructions.. you can do a little trial and error with a spreadhseet too, if so inclined. Can other formulas work? sure. Will they work as consistently? probably not. These ratios are not my concoction and they will require some 5-10% fine-tuning on your end of any nutrient need. they are based on generational knowledge and evidence-based research. I regularly pull from single reservoir no matter how many different genotypes involved in garden with no issues. the idea that these plants are "picky" is way less prevalent than perceived. Some are, but most are very happy with the same formula.. i'd put it at 90-95% are not special needs in regard to nutrients. If they are, that's just a sign of shitty selection process by the breeder making some esoteric pain in the ass plant cause they are too lazy to have an approriate sample size to pull from that would avoid that situation. Blame GD for the lack of formatting. I use paragraphs. GD is broken, again.. perpetually.