We're going to need more info... Soil or Hydro? What type of soil and amendments or what hydro and what PH? What light source? How high above the canopy? What Nutes? How often are they fed? This yellowing and necrotic tissue is on 1 of the 3 or all 3?
They're not gonna die - don't worry. Get back to us w/details and someone here can def help.
Is that on the bottom of the plant? Could we get a pic of the whole plant please?
Whats the temp? I dunno much about nutrient feeding but somethings burning.
Nutrient burn perhaps. I have had this issue but not to this extent, when growing in coco what i find that works best at least for me was to feed one or twice daily and make sure you get run off. At this point I would flush aggressively with ph'd water. Coco has a nasty habit of holding onto nutes if you dont water until runoff. Looks like they burned and are now in nute lock out.Is that on the bottom of the plant? Could we get a pic of the whole plant please?
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