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Help plants sick rapidly turning y er llow and brown leaves

Junglesurf

Junglesurf

New member
Need help clones and veg plants sick.. never seen something like this.. healthy and withing 1-2 days all leaves turning brown shriveling up. Starts with bottom leaves then rapidly moves up. Starts with brown at tips then spreads all over. Using r/o water ph 6.4 and only gave them silica and oregonism xl .
 

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Could be sulfur or magnesium deffency. What are they growing in dirt wise. And what you got for a light over top. Lots of holes for air to get into the pot looks like it could be root related., Not sulfur I mean zinc looks like it came on fast..maybe the start of an iron deffency by the looks of the newest leaves but what ever info you could give about your grow...lights, feed, environment..
 
Clones are under 4ft t5 in floraguard dirt it comes with guana added ..Dixie cups havent fed them anything but 1 dose of cal mag after they started getting yellowing in between viens.. temps 78__80 they looked fine and right after first real watering turned fast to shit. The bigger veg plants same soil where under 600 mh with co2 900 ppm they got armor si and oregonism xl .after transplant and first couple waterings same thing leaves turning brown at tips then curling up and inwards and in one day all leaves ruined. Def not overwatered
 
The water is from a r/o filtration system with salt added in the machine. Thinking it could be the water but hard to believe
 
With them going downhill that fast, my best guess is that soil pH somehow got way outside a healthy range. pH fluctuating too much even within a healthy range can also bring on minor leaf damage. If they aren't total goners by now, you could try transplanting to fresh soil after washing all traces of the old soil out of the roots. My other guess is only a shot in the dark because I'm not familiar enough with RO systems, but maybe your water treatment plant was forced to dump extra chemicals into the supply because of a bacterial bloom and it poisoned the water for plants even beyond what your system can remove. I'd start by checking pH of the water straight from the RO system.
 
I can vouch for washing the dirt off the root balls. Maybe slows em down for a week but they usually spring right back. Makes a hell of a mess in the bathtub. Even washing over a tote. I've done this when planting in last resort straight black earth. Here we had a water main break and you can smell the clorine coming out of the taps 5 feet away not sure if an r.o system takes all of it out. I use pHed tap water so can't say much for that. Couldn't possibly have bugs of some kind?
 
Thanks for the help! Yea that was the first thing I did yesterday evening was pull them out of the old dirt and rinse them with different water and put them in new dirt. There pretty wasted praying they come back i dont have backups of the strain and it's my only strain.I've had it for years. I'm pretty sure it's the water because I have 2 more that look decent that came outta the dome and still havent been watered.
 
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