I see you did check soil runoff and ph is good.....good for you. Transfer them into 5 gallon pots with quality soil and I bet your problems go away.

good luck.
Weedhound Reviewed by Weedhound on . new growth rolling in, but no yellowing!!!! They are: 1 week into flower under 400 w hps/18 inches away from canopy trainwreck x big bud 2 feet tall 3 gallon buckets Why is the new/young growth rolling in on the edges and droopey? the big fan leaves and older foliage does not look fucked up. this is occuring every where on the plant, top to bottom.. the soil ph is at 6.5. temperture 71-75 (possibly low 60's at night)degrees farenheight, im using fox farm tiger bloom, but used fox farm big grow right before flowering , which is Rating: 5