Gorilla Girl, Sweet Amnesia Haze, TPF1FV

Day 36. I'd let them get a bit dry again so gave them a feed in 2 sessions. One of 500ml and another a few hours later of 700mm, both plain water. Lighting was a bit intense with adding the LED to the CMH while still in veg so I raised both lamps to 33" above the TP. I know they need less umols in veg but I want them to get used to it before switching 12/12, and not stress them out at that point. I cleaned up the lowers and removed the main fan leaves from the main stems. Pot level temps 19-26C, roots 21-23, RH 44-69%. Day 37. Temps 18-26C, roots 20-23, RH 49-99%. I think the lights off humidity of 99% must have been a malfunction of the hygrometer. I can't understand how it could possibly get that high when the extraction is running. Maybe I spilled some water on it or something. I set up the Blumat drippers since the final pots should have been well rooted by this point. Then filled my res with 20L of plain water. Day 38. I dimmed the LED wattage to 105w on the blue and raised both lamps as high as they'd go. Ratchets removed and attached straight to the roof bar. This was in preparation for flowering, as I like to keep the lights off/on temps as close as possible to minimise stretch. 420w combined wattage with the LED 36" above the TPFV and the CMH 34" above the tallest plant at the back. I checked the res, EC had risen to 0.4 and PH was 7.3 Temp was 15C so I switched the heater on set to lowest setting at 20C. Pot level temps 19-26C, roots 18-22, RH 40-62%. The root temps had dropped since sitting the pots up on drainage racks for collecting run off easily. Day 39. Temps 19-26C, roots 18-20, RH 43-60%. The lights on root temps had also dropped quite dramatically so I added insulation to the tent, to try and combat raising the lamps and losing heat. I also gave the ducting joints to fans a good checking over to make sure no cold air was being drawn in before entering the tent. All was good there, no air was leaking but I added a bit of tape to one of the 4" fans as it was coming away slightly. Day 40. I gave them another prune of the lowers, taking the side shoots from the next node up from last time on all the main branches apart from the 2 top leaders. I also removed more shading fan leaves from the middles. Turned the dripper adjusters down by half a notch on the SAH and TP as they were still a bit droopy on the lower leaves. There was still 10L plain water left in the res at EC 0.46 I added 0.2ml/L each of Magnifical (Mc), Velo Kelp (VK), Micro (Mi) and Grow (Gr). EC 0.55 PH 7 Temp 21C Pot level temps 19-27C, roots 17-20, RH 41-74%. Day 41. Temps 17-24, roots 17-21, RH 43-75%. Lights off temps and root temps were getting lower so I turned up the dial on my boxed oil rad from 2/3 to 3/4 and the tent extraction back down from 60% to 50% on the variac. I also pushed the rad right to the back of the box in front of the outlets to make sure most of the incoming air was passing over it. I checked the res and temps were 20C, EC 0.55, the PH had risen to 7.5 I've not added any PH down as there's no need here, but I now know the PH still rises with these nutes after sitting the water for a few days before adding to the res. That's whether I PH down or not. So when I have another go at coco I'll try some different nutes, possibly Maxigrow and bloom as I've read they keep stable after the first adjustment. That was the reason why I potted up from coco to Bat Special, because the PH kept rising with these Remo nutes. Day 42. The res was getting low and I noticed an Mg defficiency setting in so mixed a fresh batch of 20L. Background EC straight from the tap 0.37 PH 7.4 0.5ml/L Mc to 0.43 O.5ml/L VK to 0.45 0.5ml/L Mi to 0.51 0.5ml/L Gr to 0.6 When mixed into the tank final EC was 0.59 The above was a mistake. I meant to up the Mc and Vk to combat the Mg def but upped the Mi and Gr on auto pilot and paid for it. The tips were burnt on the SAH and TP after a few hours so I added 10L of plain water. This took the EC back down a bit to 0.57 Temps 16-25C, roots 17-20, RH 40-76%. I was scratching my head at the low temps since insulating the tent and checking ducting so I checked the ducting over again. Low and behold, a tear in one of the ducts coming from the rad box in a hard to spot position. Can't believe I missed it, maybe I pulled the ducting when I had previously added extra tape at the other end to the fan. The tear must have already started though because the sudden drop in temps was the reason I added the tent insulation! 2 fuck ups in one day but I sorted it lol.