Quote Originally Posted by WashougalWonder
It would be nice to know what RustyT thinks it is.
It could be a limited number of things, but without knowing the exact conditions...I (or we as a community) could possibly recommend the wrong treatment or course of action, and being wrong sucks.

Plus, guessing games cause unnecessary delays that could damage the plant(s) further.

I know it isn't heat stress, unless the roots are being steamed, but I doubt that very much. I live with the heat every summer here in the desert where growroom temps exceed 95 daily. (with A/C running full-bore) That one I can be certain of. :thumbsup:

My inital thought was micronute or steroid abuse. (Superthrive) But perhaps a GH nutrient OD. Hydrogen peroxide mishap? IDK...

Without knowing what is used for ph adjusting, if anything is being sprayed on 'em, (bug sprays, tea's...) or any of the other number of things in the troubleshooting form...the list could go on a whuile.

For faster and more accurate help, fill out the form. It only takes a couple of minutes, and could help this and future grows. There's one form for hydro, one for soil. (the link is in my signature)

Plus...I'm not a hydro guy familiar with common hydro-specific situations, and SOMEBODY is going to need that info, lol.