Nirvana - Northern Light / GSC

Day 22: Watering GSC 1 Gallon of water pH: 6.5 Runoff pH: 7.1 NL 1 Gallon of water pH: 6.5 Runoff pH: 7.1 Notes: Ran about a gallon of 6.5 pH water through each plant to test runoff. Runoff was about 7.1 for some reason. I tested the water again to make sure the pen wasn't screwy, but it read 6.5 again. This is all after a cleaning and calibration, so it's definitely correct. Next watering I will pH down to 6.2 to get a range of up to 6.8. I'll be sure to post results of water/runoff. There appears to be some slight Nitrogen Toxicity in the GSC, though nothing bad. I assumed there would be some slight toxicity planting seedlings directly into FFOF. The plants are looking good and growing steadily otherwise. I bought an air purifier off Amazon to clean out the air in the room the tent is in as it's a dusty room. This should help greatly as the purifier was designed for a room slightly larger than the one it will be going in. Also bought some calibration solution for the Bluelab in 500ml bottles, so it should last me a good while. Also, going to top each plant at the third node once the fifth node forms. Could possibly be this week! Day 23: Topping Notes: 4th nodes on both plants started to grow leaves, so I changed my mind and decided that I was gonna top them today. First time ever topping a plant, so I felt like I destroyed the thing. :( I'm sure it will be fine in a couple days though. I do think I made a mistake cutting too low on the stem. I don't see the growth tips for the 3rd node on either plant. I think I may have removed them. 😐 Day 24: Nothing new Notes: Still no new growth on either plant above the third nodes. Soil was still damp below the surface, so no water today. I tried to slightly insulate my grow space by hanging plastic sheeting around the grow area to hopefully retain humidity and heat better, so it's more of a stable (and controllable) space. Day 25: Watering GSC 1/2 Gallon of water pH: 6.1 Runoff pH: 6.4 NL 1/2 Gallon of water pH: 6.1 Runoff pH: 6.4 Still no new growth on either plant. Water was tested 7.2 pH for some reason, so I PH downed to 6.1 to account for the soil raising it. Runoff tested 6.4. Humidity and temperature has been more stable since I insulated the grow space. Just have to play the waiting game after topping. 🙏 Day 26: Training Notes: Starting to see what looks like the very beginnings of growth nodes on the NL, but the ones on the GSC still look like they were mauled by my ape hands. I staked the top node growth (on both plants) down to expose the new growth site to the light more. NL is shorter but seems to be the best grower out of the two. It's very bushy and always happy to have light. The fan leaves on the GSC always look slightly droopy, but I think it might have to do with the height being almost double that of the NL, so it's probably more weighed down. Soil is still damp. No water today. Day 27: Nothing new Notes: Still no new growth 😬 Guess I did end up stunting the plant's growth. I'm sure it will recover soon. Temp / rH are stable but on the lower end of the sweet spot in the VPD chart for the temperature. If I could just increase humidity by 15%, it would be right in the middle of the sweet spot and would encourage growth. Might throw a bowl of water in there and see if that helps. Day 28: Watering GSC 1 Gallon of water pH: 6.0 Runoff pH: 6.4 NL 1 Gallon of water pH: 6.0 Runoff pH: 6.4 Notes: Still no new growth. Both plants received a gallon of water pH'd to 6, runoff measured 6.4. Lowered fan to 35V to see if I could get humidity to go up a bit more. Still looking for the sweet spot for VPD. I get the feeling these plants are both going to grow considerably over the next two weeks.