Deficiency in flower

Hey grüß dich. Sieht für mich auch eher nach einer Düngerverbrennung aus. Bei einem Mangel sind eher die unteren blätter betroffen. Bei einer Verbrennung sind es die oberen Blätter. Gut daran zu erkennen das sich die Blattspitzen hoch Rollen.

Potassium

That's why I flush coco at week 3 of flower. Leading up to that, the coco has had 8 feedings of chemical fertilizer. That will accumulate salts in the substrate and will show up in flower usually around the week 3 mark. Giving them a flush around end of week 2 start of week 3 will ensure a smooth sail to the finish. I just flushed my girls last night. I ph'd 15 gallons of water to 6.3 and douched each 3 gallon fabric pot with 6 liters each. Drain it off till it stops, then back in the tent. They get sad for a few hours and a little droopy but then they perk right up. Then come Monday, they get hit will a fresh batch of nutrients and enzymes and bacteria, and I cruise down the boulevard with the top down all the way to harvest. Booyah!

Looks like nutrient burn to me. They are burned from hot soil. It's not potassium, it's the wrong colour and potassium doesn't up curl the tips. It's severe nutrient burn.

Yes all micro nutritaints and npk as the feed your using is a very slow release pellets.your air bags are low in the soil atoflower like bigger pots as if the roots hit bottom quick they go in to flower quicker. Looking at your diary feed

If you're using organic in soil Than EVERYTHING added in then need to be able to nute uptake at that ph. Just looks like bad feeding habits and overwatering giving light green sides, then nutex burned. Mainly overwatering I reckon. You're giving her reg cal mag right? How are u giving..all nutes are organic and can take up and such levels..as I know canna products are like 9 ph some can be. And if you're giving other nute feeds close in the same pot.. Swings in ph. Too much water uptake not enuf nutes and left on sub then taken up from a single organic or right ph feeds. Then leafs to overfeeding As there's a few issues here Relax on the nutes. If giving dif one's. Break them up and give days apart.. Really outta be slowing down. Just level out the ph and let her ripening off

some kind of lock out i think.