Overwatering maybe ? Help please

controlla bene umidita e temp, anche se mi verrebbe da dire leggera overfert

so, the leaves are showing symptoms and you think it cannot be nutrient related for what reason? adjust your perception of things. More than one thing causes burnt tips... and overwatering generally is not one of them. you get puffy leaves, maybe some dead spots in middle if prolonged behaviour... irrigation habits.. assuming good dainage qualities you simple water until entire pot is wet in soil o 10% runoff in soilless. in soil you may not fertilize every time but in soilless you should. if you do this at the same weight, it'll require same volume of water to get the job done. As long as you let enough water get taken up before re-irrigating, you cannot overwater. ppl fertigate 3x per day in coco with 25% loss of weight (called dryback, but it's not "drying" much at all hopefully) without ovewatering symptoms... this should tell you enough. without sizing pot to plant size for multiple fertigation context, i'd wait fo at least 50% loss of water-weight before re-irigating. in soil it's safer to wait for top 1" deep on top is dry before re-irrigating. You need proper drainage qualities to push frequency.. even pot size to plant size ratio matters... A good ratio of nutes will work on 95% of strains.. if your mix shows overtime it does not do this, it requires a slight adjustment. time will tell... track and observe plants and slowly figure out something that does work 95% of the time in your paticular set of environemental variables.... seasons may change what is needed if you don't tightly control temps and rh etc... (fwiw, even light is an environemtnal variable despite me only using temp/rh as example of cause for different rate of feeding, but ratios should be simila if pH is similar relative to stage of life) plants are picky about esoteric ratios of fertilizers... there are ratios that wok better than others as far as compatibility... can you use some exotic ratio on a certain genetic and get a discernably positive result by comparison? maybe? lol. .but no home grower has the sample size to know that for sure and certainly not if relying on eyes and memory of past experiences.

No, it is nitrogen toxicity from over feeding.

Each plant is an individual. Do you have any children? Are they all exactly alike? Do they all like exactly the same food, the same quantity? Plants are like people - sometimes what affects one does not affect the other... and no, overwatering NEVER shows this kind of damage... overwatering will show droopy, lifeless leaves. And all water is organic... my tap water is organic, it has a pH of 7.5 which is terrible for a cannabis grow. There ARE ways to organically raise or lower the pH of anything - organic fertilizers or water... https://www.growweedeasy.com/cannabis-plant-problems/potassium-deficiency

If that was the case the rest of my plants would of been burned as well same strain same nutrients and 1 tablespoon per gallon for top soil dressing 50:50 of 444 and 284 every 3/4 weeks I’m amending again on the 11th of February and. All my other plants not one sign of damage on not one leaf……. Overwatering shows the same sign as potassium burn or potassium deficiency but thank you for the input will take it into consideration and I DO NOT ph my water it is 100% organic. That is just killing if the microbial life I’m in living soil. Not one thing was used that wasn’t organic. No matter the ph of the water once it’s not far off the microbes will adjust it to feed that is how true organically works

Starve them for a day or 2....the plants will always adapt and show you signs...understand that even if you get a pack of 5 seeds. They may grow 5 different ways...hybrids are all different...The plant will survive any test you throw at it but don't wait to long.

Hola. Si tu crees que es exceso de agua tal ves estes en lo sierto. Solo tu sabes como riegas y que cantidad de nutrientes aportas. Exceso de agua = raices en mal estado = deficiencia de nutrientes. Suerte

Potassium burn. Interested to know how much of the 444 and 284 your using, might be revealing.

And how is it you know it's not pH or nutrients? Because from what I'm seeing, you've got yourself a bad potassium deficiency.. a lot more P and K would not go amiss... And generally, you want to aim for a pH of 6.2 to allow the plants to absorb all the nutrients it needs.... But good luck!