Edges of fan leaves turning red & clawing upwards, what's the cause?

BibbyMcBuds

BibbyMcBuds

Active Member
Hey all (: The very top fan leaves surrounding the main cola have turned red on the edges and are canoeing up, I did have a heat stress situation a few weeks ago which is why the stems are purple on both plants because my grow tent was too short for the autos I'm growing but I got a new tent and since then I've been able to have the 100 watt led light at a good distance so why now are the leaves turning red and canoeing only on one plant and not the other? It didn't happen with the heat stress last time either. I've got my light at 36cm high which is actually 6cm higher than the manufacturer recommends. My oscillating fan is on 24/7 so there shouldn't be hot spots. Could this be a nutrient thing or is the light still too much for her? The humidity is quite high for in flower unfortunately because it's very humid here right now could that be the cause? She's a white widow CBD auto 50% sativa 50% indica at 12 and a half weeks old. If anyone knows what this is please let me know, much appreciated :D
 

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Bspectral

Bspectral

Well-Known Member
They most likely want a bunch of cool wet days/nights ,like put outside if possible to help a healthy green finish spurt , spray lots ph water daily/nightly on them
 
BibbyMcBuds

BibbyMcBuds

Active Member
Bspectral said:
They most likely want a bunch of cool wet days/nights ,like put outside if possible to help a healthy green finish spurt , spray lots ph water daily/nightly on them
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I live in Melbourne so it's very humid here right now, it was 96% humidity the other night so if I spray them too they might get bud rot? It's quite cold here too like 5 or 6 degrees Celsius at night and only gets up to about 17 in the day, won't that be too cold for them?
 
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