Hey Friends, I've got a small indoor medical garden here, and I'm experiencing some issues with half of my plants that needs to get fixed asap. I've got 3 Bubba Kush, and 3 Blue Dream x Banana. I've been LST'ing all of em, and a little fimming as well. The 3 Bubba plants are looking great, but the BDB are showing some issues in the leaves. Over the past 4-6 days, edges of many fan leaves have gotten yellow/almost rusty. Also many tips are showing yellow on the very tip. Also slight curling/twisting is going on. They're on 24/0, temps are between 80-86, grow medium is hydroponic(Botanicare Readygrow), I've been watering every 48-72 hours because the pots are rather large. I've been giving them Fulvic, Humic, Root Excelerator, Hygrozyme, and some Cal/mag here n there. I've been using tap H20, which comes out at 7.5-8, so I've been adding PH Down to get between 6-6.5, after I get all the additives in. The last watering I gave was Distilled water, with ONLY some added Cal/Mag..because I was thinking maybe Mg defiecency. My solution going in was 5.5-6...my runoff was about 6.5. All tests done with indicator solution, but I ty to be pretty accurate. Here are a couple pics. Hopefully some of you experts can shed some light on for me. I was thinking either Mg or Fe..what do you guys think? Could my Los Angeles tap water be giving to much Ca, and possibly locking out Mg?? If so, what could I do?...Not even sure if that's the prob..just speculating. Thanks for any help guys!!