Quote Originally Posted by burzuming
Hey mates I was growing under 150w cfl and soon I switvched to 400 hps but still 18/6. The last two pairs of leaves on my plant are a little yellowish and more thin than the previous. The lamp is 35cm or one foot far from the plants...
Also is there a chance the preflowers to look like male the first few days and than to produce pistils??
I think they look similar in early stages

yellowish could be a nute problem