new to leds, wondering if light stress or underfed, please advise

haunt808

Member
hi guys, any help is appreciated, here are some quick details to help
mostly bruce banner with the issues, purple pinecone seems to be doing better however were smaller cuttings
indoor grow - 10 days since transplant from clone
using coco/perlite 70/30
watering twice daily
10L (2.5gallon) pots, watering about 700ml (.2gallon) per feed to runoff
400w led, about 24inches away at 50%
temps about 25c (77f), humidity around 50-60%
originally was feeding on the lower ec side, around .7 at a ph of about 6-6.2, noticed the tops were a lighter green (middle seemed fine, darker green) with random spots on leaves. have since started feeding at an ec of 1.2 and lowered ph to 5.8/5.9 for the last 2 days, it does seem to be getting better but have attached pictures as well, the difference under led to normal daylight is significant, they do look better under the sun, however still have spots.
feeding is a/b, cal/mag and pro silica

my theory is that I underfed them, or the led was too close but surely it cant be, however am used to hps. bugs dont seem to be an issue, every 3 days i spray, and swap between neem oil, and a couple of local products.

I would also like to know when do people usually transplant into final containers, i have some 19L (5 gallon) airpots waiting.

thank you
 

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