Durban Poison DWC ScrOG

WEEK 3 VEGETATION See VEG Week 2 for details of stock solution A & B. I use the Bluelab Combo Meter to measure pH, ppm (TDS) 500 scale, and temperature. This week started with a reservoir change out. 3.5 Gallons of reverse osmosis water + 7 mL Green Planet Plant Guard + 7 mL GHE CALiMAGic + 21mL Stock solution Part A + 21 mL stock solution Part B = 500 ppm, pH 6.8, 66F. I then adjusted the reservoir pH down to 5.6 using Phosphoric acid (exercise caution when using this stuff, it can blind and burn skin), 85% by volume as a pH down. A 1 ml pipette does this job precisely a droplet at a time. Next task was to set up her grow environment. I moved her from my hallway into a 2x4x8ft Gorilla grow tent. She was put under an Electric Sky ES300 version 1 (no dimmer version). This light is now 3 years old, and isn't as efficient as newer LEDs; however, the spectrum works well and lights up this footprint just fine. The first light cycle (Monday) was at a height of 40 inches. On Tuesday I dropped the light to 24 inches from the top of the plant, where it will be maintained for the duration of the vegetative grow cycle. I'm running a 16 hours light cycle with a 8 hour dark cycle. I have no reasoning for doing this, other than hoping to save a few $$$ and reduce the reservoir temperature. A humidifier is used that has its own built in humidistat. I top it up once a day with R.O. water. The humidity is set at 60% R.H. to achieve my desired VPD of 1.0Kpa. Daily this week, I have checked the reservoir during the first hour of lights on. Each day the results have been the same - 500ppm, 6.4 pH, 72F, and daily I have been adjusting the pH back down to 5.6 - 5.7. In my case, this has required 6 or 7 drops of my pH down. The next day the pH has risen back up to 6.4 again. Maintaining this pH range shouldn't create any problems. Now that the roots are making their way into the nutrient reservoir, she is really starting to grow. I'll try to post a root zone picture next week (where did I leave my tripod??😑). The plant grew to a height where her cotyledons matched the top of the net cup. This was ideal, since I wanted to back-fill the net cup up to the cotyledons with more hydroton to block light entering the reservoir. Her growth pattern of her leaf sets is 1 - 3 - 7 fingers so far. The leaves are quite serrated on the edges and generally are not looking at all "sativa-ish?". On Friday I pinched off her first set of true leaves. They were looking a little pathetic and were not really contributing to the plants health. The main stem is really thickening up nicely, and the nodal spacing is staying tight, producing a squat plant at this early stage. So far I am really pleased with the growth😀!!! Please follow along, drop a like or comment, and share your experience with this strain. Peace, DeaneR😎