Gorilla Girl, Sweet Amnesia Haze, TPF1FV

The feed being raised to 1ml/L each of the first 5 bottles and 3/4 ml/L Astro Flower proved to be a bit much and the tips of the older leaves carried on burning. Also tips of new leaves were showing yellow so the feed was lowered and they had another flush on day 33 to lower any feed build up. This time with a lower strength feed. Apart from that the girls were doing fine. Day 29. CL air temps 22-30C, roots 24-25, RH 48-67%. About 8L left in the res, EC 1.1 Made a 20L mix, background EC 0.35 straight from the tap. 3/4 ml/L MC to 0.43 1 ml/L VK to 0.47 3/4 ml/L Mi to 0.56 3/4 ml/L Bl to 0.67 1 ml/L NC to 0.74 3/4 ml/L AF to 0.81 I did a complete res change and even though there is a shut off valve in the system I didn't want any air in the pipes whatsoever (my outlet is about 3" from the bottom to protect the circ pump and aquarium heater). So to do this I first got some kitchen roll to hand and a 2L jug full of the above mix. I tipped the res on it's side, almost horizontal with the base still resting on the platform and the outlet pipe facing the floor. Holding the res steady with my left hand I jugged out the remaining mix in the res until the level was just proud of the outlet, so very little solution was left in there. I used the kitchen roll to wipe the silt out from the bottom and poured the 2L jug in. I had a bucket of fresh mix by my side so I could jug another 2L in before sitting the res back upright and the 4L added was just above the outlet. Added the rest of the mix for a total of 20L and EC of 0.83 The slight dregs in the res had raised the EC very slightly. The Blumat adjusters were opened up by one notch as a precaution in case any silt had gone down the outlet while the res was on it's side. I'm really glad I thought about that one as I got a blockage of silt in the feed tube of one of my other plants a few days later and I'd not opened up the adjuster on that one. No problem with these girls yet but I won't be doing a res change this way in future. I'll turn off the valve and also plug the outlet to be sure of no air or silt entering the feed lines. The blue dimmer on the LED was raised to 180w and I removed 1 leaf from the middle of each plant. I super cropped the closest top of the TPFV that I never bothered with on the last super cropping sesh. The closest TPFV top to the lamp was 26", same for the SAH and 24" for the GG. Day 30. CL air temps 24-28C, roots 24-25, RH 49-66%. EC had risen to 1 Mixed 20L, background EC 0.35 striaght from the tap. 3/4 ml/L MC to 0.43 1 ml/L VK to 0.47 3/4 ml/L Mi to 0.56 3/4 ml/L Bl to 0.67 1 ml/L NC to 0.74 3/4 ml/L AF to 0.81 Added to res for a total of 31.5L, combined EC 0.9 All 6 plants had drank 8.5L in 24hrs so an average of 1.4L each. For my own reference I opened up the drippers on the rear plants by one notch. Day 31. CL air temps 24-28C, roots 24-25, RH 52-69%. EC had risen to 1 again. 24L left in res, so they'd drank 7.5L in the last 24hrs, a litre less than the day before. Interesting when I'd opened up the drippers on the other plants. maybe I misread the levels the day before. Performed the daily defol of 1 leaf per plant lol Not liking the lights off RH I notched the extractor Variac up from 50% to 60% and turned the inlet fan coming from the rad box up a touch to just maintain neg pressure in the tent. Turned the led blue up a further 10w to 190w. Day 32. CL air temps 24-28, roots 24-24, RH 48-59%. EC still at 1. Usual defol, then I took a cut from the bottom of the TPFV and put it in my veg cab on 24hrs light. CL air temps 24-28C, roots 24-25, RH 47-57%. Res EC 1 Usual defol, then I mixed up 18L to give all 6 plants a feed reset. Background EC 0.37 3/4 ml/L MC to 0.44 1 ml/L VK to 0.48 3/4 ml/L Mi to 0.57 3/4 ml/L Bl to 0.69 1 ml/L NC to 0.77 3/4 ml/L AF to 0.84 With the intention of hand watering this mix I had to warm it up first and it was taking ages in the attic with the buckets sat on an infra red heat mat for warming your feet up lol I saw it in the middle of Lidl once and thought it would be good for the veg cab but then decided against it in case the infra red made the plants stretch. Anyway, it's not up to heating 2 buckets of water up quickly so I added the mix to the res to warm up quicker. Total of 26L with combined EC 0.93 After a couple of hours it was up to 20C. EC had risen to 1. While waiting I decided I would reset the girls with a weaker EC. It was a last minute decision, I removed 9L from the res and mixed with 9L of fresh cold water from the tap at EC 0.37 The final EC was 0.65 and 17C so good to go. Gave all six plants 3L each through the 300ml syringe and run off was about 1.6L each. GG run off EC 1.3 SAH 1.3 TP 1.7 It was getting increasingly difficult to move the plants around in the tent, without squashing them against each other, to get the run off trays under the pots and it took me a good couple of hours. As you know though I wanted to keep the pots on the floor with no saucers, for the heat and to maintain lamp distance. So it was planned that the next reset would probably be a very slow plain watering until it just starts to run off. That would dilute any feed build up without leaving them hungry, but hopefully wouldn't be needed if I kept the feeds low from now. It's not easy doing multi strains on a one feed fits all, as you all know, so I envisaged there would probably be more build up of unused nutes in some plants as the grow progressed. Day 34. CL air temps 24-28C, roots 23-24, RH 48-66% 14L left in the res, EC still at 1 On opening the tent air temps were 28C, leaf temps 27C and RH 53%. This gave a VPD reading of 1.56 kPa, at the high end of the Mid/Late flower high transpiration band and very close to the danger zone of over transpiration. I turned the blue dimmer down 5w to 185w, totalling 500w with the CMH. On top of the steady 1 leaf per day defol, I'd been giving any old lower leaves a little tug when they'd faded. If they didn't come off easy I left them but most were gone now apart from a few fading lowers from the flush. I still wasn't happy with the fresh growth tips so I mixed 10L of weaker feed, background EC 0.35 straight from tap. 3/4 ml/L MC to 0.43 3/4 ml/L VK to 0.47 3/4 ml/L Mi to 0.53 3/4 ml/L Bl to 0.65 3/4 ml/L NC to 0.71 3/4 ml/L AF to 0.78 Before adding the mix to the res I got some plain water EC 0.49 that had been sat for a few hours and added enough to the res to take the EC down to 0.83, close to equalling the fresh mix EC. Added the mix for a total of 34L, combined EC 0.81 The venturi stopped working, no air bubbles, and I thought it was because the res was quite full but on checking the pump strainer it was partially blocked with silt. Took it out, cleaned it up and the venturi started working again :) I thought I must have washed the silt towards the pump when pouring the mix in because it was working fine before topping up. Thinking back though, I'd just done a full res change 5 days before and cleaned the silt from the res so the pump strainer must have already been partially blocked and went un noticed. I didn't think I'd need an inline filter with the outlet being 3" from the base of the res but next time I'll fit one to be safe and prevent silt getting into the feed outlet. Either that or do some research on nutes that don't cause silt, if they exist. Thinking of powdered nutes anyway, I'm sure I've read of some that don't cause residue. Day 35. CL air temps 23-28C, roots 23-25, RH 46-59%. Res EC 0.85 On opening the tent the air temp was 27C, leaf 26C and RH 50% which gave a VPD reading of 1.58kPa, very close to over transpiration. Removed one fan leaf from the middle of each plant.