Manchas en floración

The leafs look a bit pale. And it’s in severe necrosis. Looks more like a lockout to me. Phosphorus lockout maybe 🤔 I would suggest lowering your ec to 600 on feeding and slowly get runoff ec to 300. Measure runoff ec until you get to 300 , then retake feeding schedule at a low pace 😊👍🏼

Hi mate, as Uk420show says it looks like a calmag defiency but it would be worth checking your root zone and making sure your ph is on point. If it ever wasn't, you may be experiencing a lockout. Your EC is 1500 so you shouldn't really be seeing much deficiency. I would get some humic acids and beneficial bacteria in there to help her recover... Maybe even some gypsum to give her a boost and balance out ph. I hope this helps, good luck and happy growing

Cal mag defiency my friend or it could be heat stress but I would confidently say she needs some cal mag nice growing a sativa I tend to stay away from them as they take so long lol shes looking good other than that and she should be back to green with a feed though watching how much water your putting in too she could be overfed.