Humboldt All GAS OG Auto

quarterono Decided to share this girl's grow. This is my second grow after running into a lot of issues with the first one (hopefully, I learned something). This time I'm avoiding rookie mistakes: - Improved germination conditions: used the paper towel method, dialed in the temps and humidity. Everything went strictly by the book. - Used a grow box from the very start. Last time I planned an outdoor grow, which quickly turned out to be a bad idea because of unpredictable weather and cost me two weeks of veg. This time the girl is enjoying perfectly controlled light/temp/humidity conditions. - Bigger pot size: started with 5 gal instead of 3 — and filled it with the medium properly. - Proper pH control from the start. - Bought some proven nutrients. The seed was planted on 09.10 and popped on 11.10. It was so fast that I missed a couple of hours, letting the sprout become a bit leggy. Later this actually helped with LST: instead of bending, I just pinned the stem to the ground. That's pretty much it: I've just let her grow, kept training new stems, and controlled the environment. The only issue I've had so far is yellow, dry leaf tips. The yellowing started in week 2, even before I started adding any nutes. I measured the runoff TDS and it was over 1200 ppm (while input water was around 150 ppm). I assume it could be lime in the Lightmix giving these readings, but have no idea why the plant looks like it has nute burn. It might also be a sign of slightly off top-feeding. No big harm, though — she's extremely bushy and green. She started pre-flowering in the middle of week 3, so I added a second light (120W + 60W).