Gorilla Girl, Sweet Amnesia Haze, TPF1FV

Day 43. I was a bit worried about the mix still being too strong after the previous day's calamaties so I emptied the res and filled with 20L. 0.5ml/L Mc to EC 0.42 0.5ml/L VK to EC 0.45 Day 44, last day of veg. I was still a bit concerned about Mg def on the Tropicanna Poison and the EC had already risen in the res to 0.56 so I added just an 1/8 ml/L Mc which took the EC to 0.58 0.02 doesn't sound much but I already burnt my girls so didn't wanna overdo it, with the compost still being fertile and the Mc having 3% N. The Mg problem had been halted for now so all was good. Pot level temps 21-28C, roots 22-25, RH 48-78%. I turned the rad thermostat down again to 5 o'clock on the dial because I wanted lights on temps lower and lights off temps higher to keep them as close as possible to minimise stretch. They'd been in their finals for 21 days and the TP was getting tall so I switched the timers to 12/12 as planned after 3 weeks in the finals. Pre stretch measurements. (From pot level) Gorilla Girl 16" Sweet Amnesia Haze 15" Tropicanna Poison 22" I normally get temps of 21-25C in the room in winter and that keeps the stretch down most of the time, along with making sure the pots are fully rooted. Since insulating the tent and getting higher lights on temps I decided to re introduce my old tube heaters (for lights off) that I used before the external rad box was built. They've got home made heat deflectors fitted to direct the heat towards the root balls/plants. I used to have them in the middle of the tent with the deflectors facing out to the plants but this time I placed them at the front and back of the tent facing inwards, as I didn't want them in the middle in case I burned the Blumat feed tubes. So I had to strip one down and turn the deflector the other way. Easy done, just copper wires punched through the aluminium and twist tied around the brackets. the longest is 165w and the shortest is 120w I think (decal sticker is missing). Day 1. I pinched the highest tops on the TP to try and slow her down a bit. Pot level temps 20-27C, roots 23-25, RH 52-76%. I made a simple venturi from old aquarium gear I saved, to add some more oxygen to the res. So it cost me nothing :) 1/2" hose with valve and some 8mm air pump tube cut at an angle. Day 2. I turned the thermostatic plug for the tube heaters up to 27C and raised the LED power up from 105w to 110w, so that's 425w total power with the CMH. The res was getting low but it was late when I checked and I wasn't sure what my next mix was gonna be. So I just topped up with 2L plain water to see them through the next day until lights on. EC in res 0.55 Pot level temps 22-29C, roots 23-25, RH 42-64%. Day 3. I pinched the tops on the TP again, every one this time so some have been pinched twice. Just enough to flatten the stems and slow the juices but stay upright. Mixed a 20L batch for the res. Background EC 0.36 straight from the tap (It rises to 0.45 when sat in buckets for a day). 1/4ml/L MC, VK, Mi and 1/2ml/L Nature's Candy (NC) to 0.46 Total volume in the res 25L, final EC 0.49 Pot level temps 21-28C, roots 22-25, RH 42-51%. After the readings I placed the hygrometer at canopy level in my usual place at the side of the tent, so I could keep an eye on canopy temps as they flower. Day 4. On checking the res the EC had risen to 0.58 as expected after gas exchange. 20L remaining so all 6 plants including the others had used 5L total in 24 hours, average of 833ml per plant. When hand watering these pots every 2nd day they'd be on maybe 1.4-1.6L at this stage so the girls were drinking nicely from the Blumats. Canopy level temps 23-28C, roots 22-25, RH 44-55%. I managed to raise the lights on temps to 28 and still keep lights off within 5C so I was happy with that. Day 5. EC 0.58 Canopy level temps 23-28C, roots 23-25, RH 46-57%. Day 6. EC in res 0.58 Res getting low, but rather than a 20L mix I decided on a 2L mix to see them through the next day again. This time with different nutes added to suit the oncoming bloom phase and see how they liked it. Background EC 0.38 (sat for an hour first). 1/4ml/L MC to 0.41 1/4ml/L VK to 0.42 1/4ml/L NC to 0.44 1/8ml/L Mi to 0.46 1/8ml/L Bl to 0.49 1/8ml/L Astro Flower (AF) to 0.5 Added to res, combined EC 0.57 Canopy level temps 23-29C, roots 24-25, RH 48-62%. As an added note I round up or down from the hygro readings. Canopy level temps were 23.4 to 28.7 so still close to the 5C max difference I aim for.