Hey guys this is my first post so if I don't follow proper edicate I'm sorry. A bit about me and my ladies. I have almost a year under my belt and its been a fun filled journey so far with many rewards. This site has helped me more than I could have dreamed My girls are Barney's LSD. 15 of them to be exact. All of them look exceptional except this one? I've spent numerous hours over the year studying the deficiency charts and I'm still questioning what to do next since these babies are new. Here's what I got. Vegging under 5t ho. 5 inches from the tops. Humidity always around 45 to 55% and temps always around 75f. I only water when the 5 gallon bucket feels light and I haven't given them any nutrients. I use Aurora roots organic soil. I'm sure I have missed something but hopefully this pic tells the story. I have narrowed it down to either a ph issue or a potassium deficiency. I hope the gurus will chime in and level me with some knowledge. Thanks to all who view. I couldn't have done it without ya if I don't respond promptly its because its 4am I have to work tomorrow so I will reply ASAP. Thanks again for your time.