i just changed my light cycle to 12/12 tonight and my plants have been growing for just over 4 weeks veg from seed in soil.
you should maybe let them grow another week so as the 3 week old plants can catch up to the 4 week mark before flowerin.1 week can make a big difference i found
happy growin scousa
wardrobe grower 78 Reviewed by wardrobe grower 78 on . help(pic) all the bottom leaves are showing through but now the last few days some of the fan leaves have like pale burns and the very bottom ones have shriveled and gone crispy with brown bits(not really starting fom edges though,the rest of the leaves look fine,my ppm is 850 and my ph is 5.6/5.9 so would that be nutrient burn,im using a 400w multi spectrum lamp/bulb 18/6 about 17/18" away from top of plants in a hydro ebb n flo,using rockwool,temp is 27 degrees, flooding 15 mins every 6 hrs in the Rating: 5