twisting leaves. necrotic, crispy and dying

Looks like a combination of environmental stress and possible root issues. Twisting, crispy necrosis, and random leaf damage usually points to VPD being off, root zone stress (overwatering, salt buildup), or genetic quirks. Since you mention it happened last two runs too, I’d double-check root health (oxygen, watering habits, runoff EC) and really dial in the VPD. Not a typical single deficiency. It’s more systemic – something causing fluctuating stress across the whole plant. Hope that helps you narrow it down!

Burning due to a build up of nutrient salts in your substrate.........usually caused by not watering to run off each and every time you irrigate.

Hi bud. I think Ninjabuds' advice should be followed first, at least checked out. Secondly, these deformities happen to mine as well sometimes. I had to reduce fan speeds (windburn) and get my PH in check (nutrient lockouts). Dunno if you are concerned about VPD but it shouldn't be higher than 1.6kPa. At least, that is what Google told me.... 😆

Hey there it looks like maybe a ph problem Also it’s very possible they have (hlvd) Always sterilize trimming scissors it’s possible your old plants had the virus and then maybe you topped your new plant with the same scissors It’s also possible your tent is way to hot and the humidity is super low making the leaves get crispy or maybe your not watering en