Greetings Nebula. I only contact you as a last resort, as I'm sure you're busy. I've made at least 3 posts since mid May in an effort to try and understand why my plants are all so stunted. I've received no reasonable explanations as to my dilemma, thus far. These Pineapple Express plants began life in early April. The tallest is 0nly 20" tall. The two shortest are 12" tall. I put them into 12/12 flower ~ 2 weeks ago in the hopes I'd get that flower stretch. I see it happening on a stunted growth scale. I just read about Nitrogen deficiency. I didn't consider it until minute's ago. I watered and removed some yellow and dying leaves on all plants two days ago. These were on the lower nodes of all plants. I took these pics 30 minute's ago and freaked out at the number of yellow leaves on the tallest plant! The 16" plant developed more yellow leaves in the same two day period. I don't get why this is happening. I use GH's Flora Trio in well water(admittedly, I have hard water). I also use a cheap pen to pH my water every time. See the leaves on the plate? Those came off the 20" plant, tonight. Can simple Nitrogen deficiency be the sole cause of my abysmal plant growth. I'm at my wits end. I have good lighting(may even have light burn issues), good air exchanges, temps are in the low to mid '80's during the day. I really hope you can take some time to access my problem. Ask me all the followup questions you require. Thank you so much for reading. If you haven't the time or inclination to respond, could you move my post to the regular forum area?