Yellow tips and a pale base on new leaves

Salut, cela me le fait à chaque fois et à la fin ca jaunit jusqua ce que la feuille devienne sèche et morte, d'ici environ 1 mois (j'ai récolté quand meme) cependant je ne trouve pas la réponse non plus mis à part une éventuelle sur fertilisation de ton sol Bon courage

Slight yellowing of tips, ec n medium must be getting to the upper limits of what the plant can handle without associated stress. High EC creates conditions that make it difficult for plants to absorb calcium Calcium uptake is a passive process, which means that it enters the roots with the water flow (osmosis). It is then transported up through the xylem to the parts of the plant that are actively transpiring. High ec will start to disrupt calcium uptake. Also ro remember calcium and mg are two of the 6 macros that make up 99% of everything a plant will need in its life. Cannabis uses alot of calcium. Keep tabs on your ph, coco has alot of caveats that can cause ca, mg and k problems. But the generalized greening all over with no obvious start point is normally indicative of a high pH. 🤔 Going to need a ec and pH to get a idea of whats going on, leech medium if necessary down to acceptable ec range then reapply ph balanced fertilizer suitable for stage of growth. Adding any more salts could potentially do more dmg until rectified. Gluck.

Froom what I can see your plant overall looks healthy and vibrant. The slight yellowing at the tips of the new growth could be an early sign of light stress or mild nutrient imbalance, which is pretty common around week 5 in coco. Add CalMag cos Coco tends to bind calcium and magnesium, so autos in coco almost always benefit from it. A light CalMag dose can help stabilize new growth. Light distance/intensity at 75% and 35–40 cm, your light might be slightly strong for young autos. If yellowing worsens, consider raising the light or dimming slightly. New growth looks thinner thst can also be from slight heat/light stress or rapid growth outpacing nutrient uptake. As long as it evens out over the next few days, it’s not a red flag.

she looks great growmie! she is juststreching to make room for the flowers! burnedt ips is just a sighn of lil bit too much nutes but maybe just enough!! so its all good😎👌 goodluck!!

Leaves getting narrower/thinner is a sign flowering is on its way...........generally leaves get narrower during the flowering phase. The yellow tips could be the first signs of either slight over feeding or a build up of nutrient salts in the coco, especially if you haven't been getting 10-15% run off each time you irrigate. A light flush with plain pHed water may prevent it from getting worse. Also, the slight upward curling of the leaf margins can be the first sign of a developing magnesium deficiency.

my guess it is the beginning of Ca excess bs ur fertelizer has 7% + ur water ppm ? (how much idk) but the symptoms are yellowing from center to tips if it gets less greener and u'll see purple stem and petiole then that's it also ur new leaves are wrinkled